included dependencies into cmake build

added cmake/FindLuaJIT.cmake
added cmake/FindOGRE.cmake
added cmake/FindOIS.cmake
added cmake/FindPkgMacros.cmake
added cmake/PreprocessorUtils.cmake
renamed assets/CMakeLists.txt to data/CMakeLists.txt
modified CMakeLists.txt
modified src/CMakeLists.txt
modified src/Explore.cpp