Squashed commit of the following:

commit 158a4ef
Author: Alexander Wong <[email protected]>
Date:   Sat Dec 12 00:49:11 2020 -0700

    Base depth should not have child node display artifact

    - Updated documentation for adding profile_memory keyword argument

commit 83c5191
Author: Alexander Wong <[email protected]>
Date:   Sat Dec 12 00:22:06 2020 -0700

    Heading to match official

commit c1ed6a2
Author: Alexander Wong <[email protected]>
Date:   Sat Dec 12 00:10:03 2020 -0700

    cpu_memory -> self_cpu_memory

commit a63d133
Author: Alexander Wong <[email protected]>
Date:   Fri Dec 11 23:56:50 2020 -0700

    Backwards compatible memory profiling and `self_cuda_total`

    - refactored display code to separate file
    - warning if calling profile_memory on unsupported library
    - dynamically determine whether or not column should be displayed

commit b663bbb
Merge: 7b274ef fc6c8e4
Author: Alexander Wong <[email protected]>
Date:   Fri Dec 11 20:45:08 2020 -0700

    Merge pull request #16 from teamclouday/master

    Placing into `profile_memory`, requires non-breaking support for `torch<1.6`

commit fc6c8e4
Author: teamclouday <[email protected]>
Date:   Fri Dec 11 21:43:34 2020 -0500

    add memory information