Marcel's Renderer - Alpha - 2.0

Now, the renderer can use the class "Rect.h", which contains a vector
with vertices. The Buffer-Loading in "Rect.cpp" can handle vectors as
well
broken files, just for testing for marcel
Kevin's Renderer Version - Bugfix von Marcel

I did a bugfix, so the Renderer of Kevin now works with vectors
Marcel's Renderer - Alpha 2.1 - Shaderpath Bugfix

Now, everybody should be able to start the renderer, added the
"SHADER_PATH" feature of Jan
Marcel's Render - Alpha 2.1 - Second commit

just the same as before
cleaning up
Merge pull request #3 from MaikKlein/master

Update from original