Toggle to remove default music from random select.

[sabrielkytori]

Is your feature request related to a problem? Please describe.
I use custom music packs with DBM to randomize encounter music and would like the music I include to be the only tracks that play. Currently the included tracks such as Anduin Part 2 B, Bronze Jam, Invincible, etc. have a chance to pop up in the shuffle rotation.

Describe the solution you'd like
A toggle to exclude these from being loaded into the music list.

Describe alternatives you've considered
Currently I comment out these tracks in the DBM-Core\modules\Sounds.lua on every addon update, which, while it works, can sometimes be tedious if there are frequent updates.

Additional context
Add any other context or screenshots about the feature request here.
Screenshots of what I comment out to make this work for me and am asking for a toggle for:

Thank you for any consideration.