The decision was made to name them LayeredExeFS instead of just LayeredFS to differentiate from normal RomFS-based mods. The name may be long/unweildy, but conveys the meaning well.

When enabled, all exefs(es) will be copied to yuzu/dump/<title_id>/exefs.

Also adds UI option in Debug > Dump section, with the idea later things to be dumped (i.e. other game data or textures, etc) will use the same group box.

* GDBStub works with both Unicorn and Dynarmic now

* Tidy up

citra-qt: Rename derivative class name