v0.1.5 - Update sfzlist to support individual files

sfzlist with --path previously only supported directories. Fixed up to support .sfz files as well.

Also fixed a bug/typo in the previous version

v0.1.4

Added the --no-pickle option. Skips the cache and useful when debugging issues with the parser

Fixed a couple bugs related to syntax changes in the new syntax.yml

Added overrides for lokey and hikey to accept -1 in any spec except v1