Use cmake submodule

.gitmodules

cmake

cmake/FindOpenRTM.cmake

cmake/GNUInstallDirs.cmake

cmake/LICENSE

cmake/README.md

cmake/announce-gen

cmake/base.cmake

cmake/boost.cmake

cmake/bootstrap

cmake/catkin.cmake

cmake/cmake_uninstall.cmake.in

cmake/compile.py

cmake/compiler.cmake

cmake/config.h.cmake

cmake/config.hh.cmake

cmake/cpack.cmake

cmake/createshexe.cmake

cmake/debian.cmake

cmake/deprecated.hh.cmake