Remake of the render library, added files & a test app
Changes to the old renderer
Merge branch 'refactnewrender' into eladev
- Added skeleton for OpenGL and software-renderer

- Added some functionality to the sw-renderer
Moved the new renderer to libRender and the old one to libRenderold (will be deleted soon)
OpenGlDevice is now able to render something in ortho & persp. proj.
Added an app to interactively test the new sw-renderer
New interactive app working
Fixed y-direction (opencv images have their origin at the top-left)
Changed camera vectors to be the same as in Shirley CG
Moved working stuff back into libRender
Everything tidied up into libRender
Software-renderer now fully working with orthogonal projection.

Tidied up the code even more and added some documentation
Merge remote-tracking branch 'origin/eladev' into refact