Trailer name: Don't include main movies resolution/...

[bugwelle]

From: https://github.com/Komet/MediaElch/pull/523#issuecomment-410524594

Is there a way to find just the base Movie Name instead of arg(fi.completeBaseName()); I have some extra stuff I don't want in the trailer name. Since it's looking for the Full base name it wants the extras, but plex will show the entire trailer name, so i would like it a bit cleaner. for example Full Movie Name: Krampus.(2015).1080p.h264.dts.mkv Trailer: Krampus.(2015).Trailer.1-trailer.mkv

[bugwelle]

I will have to test: https://kodi.wiki/view/Trailers

If the <trailer> field with a local filename works, we can use another filename than <originalname>-trailer.