bc7enc (BC7 block encoder), from https://github.com/richgel999/bc7enc_rdo commit b9438627eef73a1157e84201b6fa6eb2ffd6d9f0,
Richard Geldreich, Jr.; MIT or public domain (LICENSE). Unmodified. Used by nr_hires.cpp to compress the
large images (TODO 94).
bc7decomp.cpp / bc7decomp.h (BC7 block decoder), the same commit, MIT or public domain, unmodified: used by nr_hires.cpp
to read a PCSX2 texture pack's DDS images (TODO 290 (17)).
