Release v1.19.1 (for Beat Saber v1.17.0, v1.18.0, v1.19.0)

See the README file for installation and usage instructions.

Fixes:

• Conflict with Practice Plugin (rewinding causes duplicate note controller mappings, thanks @Kylemc1413)
• Potential listener leak if a CutScoreBuffer doesn't call finish listener before being reused in another map