Initial attempt at having entities actually load.

Slightly not what we want, I think. More hardcoded than I wanted. The file
is parsed though, and the factory is filled with information. I think.
Merge branch 'somethingtodowithentities' of github.com:dreac0nic/nimbus into somethingtodowithentities

Conflicts:
	src/EntityFactory.cpp
	src/GameEntity.cpp
	src/GameMode.cpp