Fixing contribute pull request guide
Merge branch 'contribution'
Adding vector4 unit test.
win32_Window now has PollEvent func
Ignoring wiki folder
Taking down lib/ README
Modifying some READMEs
Moving platform-specific utility code
Adding framework Vector4 functions
X11 OpenGL drawing works.
Removing wiki as submodule.
SwapBuffers now a Window API call
Updating DESIGN
Adding docs folder with some info on design
Adding Node and Shape class.
Adding DIAGRAMS.md file
Update DIAGRAMS.md
Update DIAGRAMS.md
Adding Mesh and Shader framework classes.
Adding framework operator[] for Vector4