Add description for non-MIT licensed codes (#1000)

* Add license description for non-MIT files.

* Fix link.

* Add .md to license files.

* Fix link to md in licenses.

README.md

@@ -503,4 +503,4 @@ make table        # generate a table with encoders and print to stdout
 ```
 
 ### 🛡️ License <a name="license"></a>
-The project is distributed under [MIT License](https://github.com/qubvel/segmentation_models.pytorch/blob/main/LICENSE)
+The project is primarily distributed under [MIT License](https://github.com/qubvel/segmentation_models.pytorch/blob/main/LICENSE), while some files are subject to other licenses. Please refer to [LICENSES](licenses/LICENSES.md) and license statements in each file for careful check, especially for commercial use.

licenses/LICENSES.md

@@ -0,0 +1,25 @@
+LICENSES for specific files
+===========================
+
+The majority of the code is licensed under the [MIT License](LICENSE). However, some files are licensed under different terms. Please check each file for file-specific license.
+
+
+**Component-Specific Licenses**
+
+- NVIDIA License
+
+  * Applies to the Mix Vision Transformer (SegFormer) encoder
+  * This is for non-commercial use only
+  * [segmentation_models_pytorch/encoders/mix_transformer.py](https://github.com/qubvel/segmentation_models.pytorch/blob/main/segmentation_models_pytorch/encoders/mix_transformer.py)
+  * [LICENSE_nvidia](LICENSE_nvidia.md)
+
+
+- Apple License
+  * Applies to the MobileOne encoder
+  * [segmentation_models_pytorch/encoders/mobileone.py](https://github.com/qubvel/segmentation_models.pytorch/blob/main/segmentation_models_pytorch/encoders/mobileone.py)
+  * [LICENSE_apple](LICENSE_apple.md)
+
+- BSD 3-Clause License
+  * Applies to the DeepLabV3 decoder
+  * [segmentation_models_pytorch/decoders/deeplabv3/decoder.py](https://github.com/qubvel/segmentation_models.pytorch/blob/main/segmentation_models_pytorch/decoders/deeplabv3/decoder.py)
+

licenses/LICENSE_apple.md

@@ -0,0 +1,46 @@
+Copyright (C) 2022 Apple Inc. All Rights Reserved.
+
+IMPORTANT:  This Apple software is supplied to you by Apple
+Inc. ("Apple") in consideration of your agreement to the following
+terms, and your use, installation, modification or redistribution of
+this Apple software constitutes acceptance of these terms.  If you do
+not agree with these terms, please do not use, install, modify or
+redistribute this Apple software.
+
+In consideration of your agreement to abide by the following terms, and
+subject to these terms, Apple grants you a personal, non-exclusive
+license, under Apple's copyrights in this original Apple software (the
+"Apple Software"), to use, reproduce, modify and redistribute the Apple
+Software, with or without modifications, in source and/or binary forms;
+provided that if you redistribute the Apple Software in its entirety and
+without modifications, you must retain this notice and the following
+text and disclaimers in all such redistributions of the Apple Software.
+Neither the name, trademarks, service marks or logos of Apple Inc. may
+be used to endorse or promote products derived from the Apple Software
+without specific prior written permission from Apple.  Except as
+expressly stated in this notice, no other rights or licenses, express or
+implied, are granted by Apple herein, including but not limited to any
+patent rights that may be infringed by your derivative works or by other
+works in which the Apple Software may be incorporated.
+
+The Apple Software is provided by Apple on an "AS IS" basis.  APPLE
+MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
+THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
+OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
+
+IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
+OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
+MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
+AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
+STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
+-------------------------------------------------------------------------------
+SOFTWARE DISTRIBUTED WITH ML-MobileOne:
+
+The ML-MobileOne software includes a number of subcomponents with separate
+copyright notices and license terms - please see the file ACKNOWLEDGEMENTS.
+-------------------------------------------------------------------------------

licenses/LICENSE_nvidia.md

@@ -0,0 +1,64 @@
+NVIDIA Source Code License for SegFormer
+
+1. Definitions
+
+“Licensor” means any person or entity that distributes its Work.
+
+“Software” means the original work of authorship made available under this License.
+
+“Work” means the Software and any additions to or derivative works of the Software that are made available under
+this License.
+
+The terms “reproduce,” “reproduction,” “derivative works,” and “distribution” have the meaning as provided under
+U.S. copyright law; provided, however, that for the purposes of this License, derivative works shall not include
+works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work.
+
+Works, including the Software, are “made available” under this License by including in or with the Work either
+(a) a copyright notice referencing the applicability of this License to the Work, or (b) a copy of this License.
+
+2. License Grant
+
+2.1 Copyright Grant. Subject to the terms and conditions of this License, each Licensor grants to you a perpetual,
+worldwide, non-exclusive, royalty-free, copyright license to reproduce, prepare derivative works of, publicly
+display, publicly perform, sublicense and distribute its Work and any resulting derivative works in any form.
+
+3. Limitations
+
+3.1 Redistribution. You may reproduce or distribute the Work only if (a) you do so under this License, (b) you
+include a complete copy of this License with your distribution, and (c) you retain without modification any
+copyright, patent, trademark, or attribution notices that are present in the Work.
+
+3.2 Derivative Works. You may specify that additional or different terms apply to the use, reproduction, and
+distribution of your derivative works of the Work (“Your Terms”) only if (a) Your Terms provide that the use
+limitation in Section 3.3 applies to your derivative works, and (b) you identify the specific derivative works
+that are subject to Your Terms. Notwithstanding Your Terms, this License (including the redistribution
+requirements in Section 3.1) will continue to apply to the Work itself.
+
+3.3 Use Limitation. The Work and any derivative works thereof only may be used or intended for use
+non-commercially. Notwithstanding the foregoing, NVIDIA and its affiliates may use the Work and any derivative
+works commercially. As used herein, “non-commercially” means for research or evaluation purposes only.
+
+3.4 Patent Claims. If you bring or threaten to bring a patent claim against any Licensor (including any claim,
+cross-claim or counterclaim in a lawsuit) to enforce any patents that you allege are infringed by any Work, then
+your rights under this License from such Licensor (including the grant in Section 2.1) will terminate immediately.
+
+3.5 Trademarks. This License does not grant any rights to use any Licensor’s or its affiliates’ names, logos,
+or trademarks, except as necessary to reproduce the notices described in this License.
+
+3.6 Termination. If you violate any term of this License, then your rights under this License (including the
+grant in Section 2.1) will terminate immediately.
+
+4. Disclaimer of Warranty.
+
+THE WORK IS PROVIDED “AS IS” WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING
+WARRANTIES OR CONDITIONS OF M ERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE OR NON-INFRINGEMENT. YOU
+BEAR THE RISK OF UNDERTAKING ANY ACTIVITIES UNDER THIS LICENSE.
+
+5. Limitation of Liability.
+
+EXCEPT AS PROHIBITED BY APPLICABLE LAW, IN NO EVENT AND UNDER NO LEGAL THEORY, WHETHER IN TORT (INCLUDING
+NEGLIGENCE), CONTRACT, OR OTHERWISE SHALL ANY LICENSOR BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY DIRECT,
+INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF OR RELATED TO THIS LICENSE, THE USE OR
+INABILITY TO USE THE WORK (INCLUDING BUT NOT LIMITED TO LOSS OF GOODWILL, BUSINESS INTERRUPTION, LOST PROFITS OR
+DATA, COMPUTER FAILURE OR MALFUNCTION, OR ANY OTHER COMM ERCIAL DAMAGES OR LOSSES), EVEN IF THE LICENSOR HAS BEEN
+ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.