Added core runner internals.

Added first shot of core runner internals.
Prepared framework for game routine processing.

modified:   .gitignore
modified:   usr/src/libtgecore/CMakeLists.txt
modified:   usr/src/libtgecore/tgeCoreMain.cpp
new file:   usr/src/libtgecore/tgeCoreRunner.cpp
modified:   usr/src/libtgecore/tgeCoreRunner.hpp
modified:   usr/src/libtgecore/tgeGR.hpp