Added selection ring for selecting planets. For later.
Major refactor... This was incompatible (-> fucked) from the start.

Still buggy at this point, will debug later.
Fixed Bug that displayed actors were not updated on level reset.
Renamed fonts to be more descriptive in their sizes.
Actors now know who they're drawing
Somehow fixed the random color bug... Don't ask me how.

I'm 99% sure this is what I tried yesterday, but it wouldn't work. Now it does... (┛ò__ó)┛彡┻━┻
I'm failing to see what the issues here is. Will continue later.
Renamed SWActor -> GenericActor
GenericActor is useless like this, kicked it.
simpler centered font rendering
nothing really... ignore this commit
There's going to be a few new actors, moved them to a separate package.
Basics for the SelectionActor, more to follow
oops
Merge branch 'master' into ui

Conflicts:
	core/src/com/lostmekkasoft/spicewars/GameplayScreen.java
	core/src/com/lostmekkasoft/spicewars/data/Planet.java
Merged all the changes together (manually as well now).