Added midi library
Added tackstate and controller/note info classes
Added background music and midi loader and test (sorry for spamming log
;) )
Merge branch 'master' of
https://github.com/brookman/codenameNeonshooter.git

Conflicts:
	core/src/main/java/eu32k/neonshooter/core/ui/InGameScreen.java
Added midiState to screen