Update cm_utils.py to not contain controller-only code

Current version of `module_utils/cm_utils.py` has both controller-only code (for the base `Lookup` class) and general code (for the base `Module` class).  Any module that extends the latter will fail to run in a non-controller environment since the imports like `ansible.utils.display` are not available.  Need to split out the controller-only into its own file.