added lua source code
Merge branch 'master' of https://github.com/mweschler/SPEng

# By Michael Weschler
# Via Michael Weschler
* 'master' of https://github.com/mweschler/SPEng:
  Removed latex generation from doxygen config
  Added GLBuffer documentation
  Added documenation building via doxygen, see ENG_BUILD_DOCUMENTATION option in cmake
  Added doxygen binary for windows
Scripting v0.1
Scripting v0.2
Scripting v0.2
Scripting v0.2
Scripting Manager v0.3