makeinc2cmakeconf.py:
  add some command-line options
  use list(APPEND A *) instead of set(A $A *) in CMake
  properly set multiple values to CMake variables
  generate a CMake Version file
  fix case for build-configuration (first letter capital)
add geninetconf.sh for generating an OMNeT++INETConfig.cmake
add CMakeLists.txt
add README.cmake
note: build with CMake is now functional