Pulling dev into featurebranch

.gitignore

README.md

assets/materials/skybox.yml

assets/materials/spaceSkybox.yml

assets/models/skybox.yml

assets/models/spaceSkybox.yml

assets/scenes/_default.yml

assets/scenes/demo1.yml

assets/scenes/skybox.yml

assets/shaders/_default.glsl

assets/shaders/skybox.glsl

assets/textures/skybox_sides.jpg

assets/textures/skybox_tw3.jpg

assets/textures/spaceSkybox.jpg

include/overkill/Model.hpp

src/EntityNode.cpp

src/Init.cpp

src/Input.cpp

src/ModelSystem.cpp

src/Parser.cpp