Add support for woff and woff2 fonts

Change-Id: Ib44fa4eabfcd50c33eb2316b43cca83187d2370a
Reviewed-on: https://flutter-review.googlesource.com/c/third_party/freetype2/+/42000
Reviewed-by: Yegor Jbanov <yjbanov@google.com>
Commit-Queue: Harry Terkelsen <het@google.com>
Reviewed-by: Jason Simmons <jsimmons@google.com>