qibuild/stage.cmake: implement qi_stage_cmake
qibuild/stage.cmake: implement qi_stage_cmake

FIXME: change name
qi_create_cmake ?

dmerejkowsky/qibuild,aldebaran/qibuild,aldebaran/qibuild,dmerejkowsky/qibuild,dmerejkowsky/qibuild,dmerejkowsky/qibuild,dmerejkowsky/qibuild,aldebaran/qibuild,aldebaran/qibuild