License for "pillow-heif" binary wheels: GPLv2, due to base library licenses.

Binary wheels combine several license-compatible libraries. Here they are listed.

Name: libheif
License: LGPLv3
Files: heif.dll or libheif.[dylib|so]
  For details, see https://github.com/strukturag/libheif/blob/v1.13.0/COPYING
  Source code: https://github.com/strukturag/libheif/tree/v1.13.0

Name: libde265
License: LGPLv3
Files: libde265.[dylib|so|dll]
  For details, see https://github.com/strukturag/libde265/blob/v1.0.8/COPYING
  Source code: https://github.com/strukturag/libde265

Name: x265
License: GPLv2
Files: libx265.[dylib|pyd|so]
  For details, see https://bitbucket.org/multicoreware/x265_git/src/Release_3.4/COPYING
  Source code: https://bitbucket.org/multicoreware/x265_git/src/Release_3.4

Name: libaom
License: BSD 3-Clause
Files: aom.dll or libaom.[dylib|so]
  For details, see https://aomedia.googlesource.com/aom/+/refs/tags/v3.4.0/LICENSE
  Source code: https://aomedia.googlesource.com/aom/+/refs/tags/v3.4.0
