-Update to use argparse.ArgumentParser() for command line args
-Use tempfile library to create tmp work directory
-Remove shutil.rmtree because it was throwing permission errors and
not deleting the directory. Also no longer needed after switching
to tempfile.
-Enchance error handling
-Add check for Go installation
-Enhance check for PyYAML installation
-Change deprecated PyYAML load function to full_load
-Add comments at top of file
-Modify to comply with PEP8
-Update kubernetes-components.md with software versions to match script
Signed-off-by: Aimee Ukasick <aimeeu.opensource@gmail.com>