mobipeg v1.1

• New format and codec support: Added encoders and decoders for VX (Actimagine/MobiclipDS video), RVID (Rocket Video), KWZ (Flipnote Studio 3D), PPM Flipnote, and THP (GameCube/Wii video). VX includes full CAVLC video codec, audio encoder/decoder, and both mux/demux.
• MODS improvements: Extended MODS encoder/decoder with broader audio support; Codebook (SX/FastAudio-SX) audio is now fully decodable (previously errored).
• ADPCM encoder: Major expansion of the ADPCM encoder (adpcmenc.c) with ~535 lines of new encoding logic.
  encode.py / encode_gui.py: Added YCgCo inverse colorspace correction (fixes green/magenta cast on MODS/VX decode), auto-detection of YCgCo sources via ffprobe, per-format demuxer forcing (PPM, KWZ, THP, RVID), duration/FPS probing, and MOBICLIP_KEYINT_MAX cap (90 frames, matching retail Wii .mo cadence).
• RVID tools: Added rvid.py, rvid_decode.py, and rvid_lz.c for standalone RVID unpacking with LZ compression