Update packaging docs

COPYING.NONGPL

@@ -95,6 +95,8 @@ lib/ivis_opengl/3rdparty/vk_mem_alloc.h
 	- MIT License, Copyright (c) 2017-2020 Advanced Micro Devices, Inc. (https://github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator)
 lib/ivis_opengl/3rdparty/vkh_*.*
 	- MIT License, Copyright (c) 2019-2020 past-due (https://github.com/past-due/vulkan-helpers)
+lib/netplay/3rdparty/miniupnp/*
+	- BSD, Copyright (c) 2005-2024, Thomas BERNARD (https://github.com/miniupnp/miniupnp)
 lib/sound/3rdparty/opusfile/*
 	- BSD 3-Clause License, Copyright (c) 1994-2020 Xiph.Org Foundation and contributors (https://github.com/xiph/opusfile)
 src/3rdparty/gsl_finally.h

pkg/copyright

@@ -83,6 +83,10 @@ Files: lib/ivis_opengl/3rdparty/vkh_*.*
 Copyright: 2019-2020 past-due
 License: Expat
 
+Files: lib/netplay/3rdparty/miniupnp/*
+Copyright: 2005-2024, Thomas BERNARD
+License: BSD-3-clause-miniupnpc
+
 Files: lib/sdl/cursor_sdl_helpers.cpp
 Copyright: 2022 Warzone 2100 Project
            1997-2022 Sam Lantinga
@@ -402,6 +406,30 @@ License: BSD-3-clause-inih
  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+License: BSD-3-clause-miniupnpc
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+ .
+  * Redistributions of source code must retain the above copyright notice,
+    this list of conditions and the following disclaimer.
+  * Redistributions in binary form must reproduce the above copyright notice,
+    this list of conditions and the following disclaimer in the documentation
+    and/or other materials provided with the distribution.
+  * The name of the author may not be used to endorse or promote products
+    derived from this software without specific prior written permission.
+ .
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
 License: BSD-3-clause-re2
  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions are