Implementation of SAH Building Strategy completed (untested)

+Add: Compare methods to MathUtils
+Add: get-Method and []-operator to AxisAlignedBounding box (preparation
for immutable object)
~Fix: Bounding Box calculation in TriangleVerticeRefs
~Fix: testmain.h prototypes
~Change: testmain.cpp allocation of arrays made compatible to MS VC 2012
compiler