Configurable Artist and Title remapping

[regorxxx]

Allow to configure the artist and title web lookup, so things like multiple artist, exotic chars or personalized tags can be handled via TF:

For ex. [$stripprefix($meta(artist,0))] or [$replace(%title%,$char(40),,$char(41),)]...

Example from Lyrics Show 3:

Note this allows an infinite amount of possibilities to fix common problems looking for things.