[Enhancement]: Make Genre Separators configurable

[DummerJunge]

Describe the feature/enhancement

Splitting the [ID3] genres into multiple ones, done in AudioFileScanner.js, works nice but uses a fixed set of separators "/", "//", or ";" (nicely described here https://www.audiobookshelf.org/docs#book-audio-metadata).

I would really appreciate having this as a library configuration option, to get rid of the slashes just leaving the semicolon.

[advplyr]

Can you be more specific on the issue you are coming across where you want to use a different separator?
There is a similar request to support parsing on comma #3127

[DummerJunge]

Hello, using MediaMonkey and mp3tag to tag mostly mp3 with ID3v2 having genre strings like "Classic Guitar / Slightly distorted; Bells; Hornpipe / Slightly distorted; Concert Guitar / Out of tune", four genres:

1. Classic Guitar / Slightly distorted
2. Bells
3. Hornpipe / Slightly distorted
4. Concert Guitar / Out of tune

Unfortunately these split in ABS splits them into 5 genres

1. Classic Guitar
2. Slighthly distorted
3. Bells
4. Hornpipe
5. Concert Guitar
6. Out of tune

So I cannot distiguish the out of tune, distorted and normal instruments. Retaging using other separators is difficult because the genres are not only used for hearing but also for spectral analysis...