(Suggestion) OpenMPT->Furnace (and vice versa) note copying compatibility

[Vargoshi]

When someone created a song in OpenMPT and wanted to do the same song in Furnace (and vice versa) and didn't want to recreate the song note by note, it should be possible to easily copy notes from pattern columns.

[N-SPC700]

Seconded, and it would be nice if this could be expanded for FamiTracker and other programs as well.

[WindowxDeveloper]

I mean, we already have this on Deflemask (though with varying results), so the idea of importing from OpenMPT, Famitracker, etc. is a nice idea.

[tildearrow]

0.6.1 will have the ability to paste OpenMPT clipboard - the other way around is not supported yet.

Thanks @LTVA1 for the help!

[MarisaKirisame7]

Zamn just know bout this 2 months later