[Bug] Multi-File .m3u Support

[Spinnich]

Describe the bug
When importing / downloading a multi-file game from RomM via the PlayNite plugin that has a .m3u playlist file, all files will be added as rom targets instead of just the .m3u file. This causes Playnite to present the user with multiple choices when launching the game as opposed to starting and letting the emulator decide via the playlist file.

To Reproduce
Download any multi-file game that utilizes a .m3u playlist file.

Expected behavior
Only the .m3u playlist file should be added as a valid rom target.

Screenshots

[SisterVersio]

Just interjecting that this should/needs to be optional per platform as m3u files are generated for every platform regardless if the format is supported for the emulator (Xenia, cartridge games)