Faster-Whisper-XXL r245.2

Standalone Faster-Whisper implementation using optimized CTranslate2 models.

Includes all Standalone Faster-Whisper features + some additional ones. Read here.
Last included commit: #245
Faster-Whisper-XXL includes all needed libs.

Some new stuff in r245.2:

Fixed: Audio track selection with --ff_track didn't work with --ff_mdx_kim2.
New feature: Deal with inverted polarity/phase in audios with new args: --ff_lc & --ff_invert.
New feature: --model_preload [its automatic]. Fixes FW model interference with --ff_mdx_kim2.
New feature: --diarize_ff [its automatic]. Enables diarization after --ff_... filters.
New feature: Output diarization embeddings with --return_embeddings/-embeddings.
New feature: Diarize without transcription with --diarize_only.

Link to the changelog.