v2.0.0-beta2

• Read and write support for HPS files found in Super Smash Bros. Melee and Kirby Airride.
• Read and write support for 16-bit and 8-bit PCM audio in BRSTM, BCSTM and BFSTM files.
• Read and write support for BCSTM and BFSTM files with arbitrary endianness.
• Read and write support for LWAV files. (WAVE files containing a "smpl" chunk with loop points).
• CLI: Allow specifying audio codec.
• Make GC DSP-ADPCM encoding fully accurate to the newest official implementation.
• Make audio format classes immutable.
• Add tests for audio formats.
• Add 010 Editor binary templates for BRSTM, BCSTM, BFSTM, and HPS formats.
• Create long-running tests for reading and rebuilding existing audio containers.