Docs for CMS commands
mk-script for EDLooper template
CMS specific code
Update
Add get_code_generator function; change functor to capture stdout printouts; move test_env from main to utils
Use get_code_generator and test_env from utils module
Change python template snippets to use printouts rather return statement
Skip header_files
Provide more smart message depending on what type of code we generate
Re-implement mk-scripts in python
Remove os module from mk-scripts; all mk-scripts pass 10/10 with pylint