Nirbheek Chauhan authored Jan 28, 2019 and Nirbheek Chauhan committed Feb 04, 2019

freetype: You have to pick between FTL and GPLv2
frei0r-plugins: It's GPLv2+, not LGPL
openssl: Obviously, OpenSSL not BSD
harfbuzz: Actually BSD, not LGPLv2+
lame: transitioned to LGPL2, no longer GPL
nettle/gmp: licensed under all three licenses
osx-framework: No license, just copying of files from other recipes
gst-shell, vsintegration, etc: Match with gstreamer's license
toolchain: All LGPLv2+, GPLv2+, or GPLv3+
other recipes: verified by `diff -uw` on license

Remove most unused license enums, except Proprietary