Added support for doxygen
Changed doxygen ti use dot

+made DrawElementsIndeirectCommand protected member of RenderObject
Added Openstrategia-docs as a submodule
Altered doxyfile to write into OpenStrategia-docs
Merge pull request #13 from GenaBitu/doxygen

doxygen to develop
Merge pull request #14 from GenaBitu/develop

develop to master - 0.3.1