asset manager (basic interface)
interface should be (nearly) feature-complete
optimized maybe interface
restructored projected; added pysfs; more assetManager stuff
Merge remote-tracking branch 'refs/remotes/origin/dev' into feature/assetManager

Conflicts:
	MagnumOpus/CMakeLists.txt
fixed SOIL-bugs
Merge pull request #5 from lowkey42/feature/assetManager

Feature/asset manager