Now using SDL for windowing to help with xplatformness
Added SDL to github
Change clear color (back) to be consistent with other tests
Remove traces from git (shouldn't be there), also start at 0.0f unconditionally
Relocated files
Removed dead files that have been relocated
_Basic_ functionality with cmake.
Basic stab at CMake-style build. This stuff is terrible though, so this is thoroughly temporary.
OSX support (sorta)
Fixes to make linux build.