Added PixelLight SDK and its licenses.
Added the project so far.

Basically a merge between the PLCartoon and PLDemo. Still fiddling with some components.
Features:

Project:
-> Script based application
-> Real time script reloading
-> Input still half C++/half Lua

MainScene:
-> 3rd Person Camera
-> Basic Lightning/Shadows
-> Basic Control
-> Test Meshes successfully imported
-> Anchored Player Meshes
-> Very ugly Terrain/Skybox