added windows build using msvc
added code for bvh from shadowofq
added missing files
fixed a bug in bvh ptr computation and added first simple ray tracing routine
added display of normals
added rt specific files and a new exec to evaluate rt performance
enabled stats in ndebug
Merge branch 'win32'

Conflicts:
	src/renderer.cpp
	src/sys.cpp
move base files into a base/ directory
added sse vector math library
more cosmetic cleaning
added an option to limit edge size. this is pretty good with ray tracing performance
added a obj importer and added sibenik
added avx structures and functions
fixed both avx and sse routines when using avx profile
improved a bit rt test application
flush denormals to zero and no denormals
implemented a more SOA friendly ray hit structure
removed old packethit routines
s/newpackethit/packethit/g