Many changes, and improvements

Added:

1. Now you can change bitrate for each sound in config.yml
2. Added caching for /musicurl command
3. Custom formats support
4. Distance permission: plasmo.addon.distance.(distance, for example: 100)
5. API changed and improved
6. Now music quality must be better
7. Control command permissions for: /musicurl, /musicfile, also you can disable commands, caching, add/toggle size limit and etc.