[Feature Request] Add feature to play different sounds for screens using Lua files

[EngineMachiner]

I was trying to use different or custom Common start/cancel sounds for a screen but it seems to be attached only to one ogg file or redir and lua files can be only used as ScreenExample music.lua so it would be a good idea (at least for me) to make it possible to run lua files that maybe return the path of the sound file like ScreenExample music.lua or maybe return a Def.Sound{} (because I could iterate through a list of screens and check with SCREENMAN:GetTopScreen():GetName())

Maybe let it work with in/out transitions, it might be good to reduce the quantity of redirs if someone wanted to use less sounds too.