Moves logic from create_metadata_yml to generate_metadata_yml.sh
I did this because we originally had generate_event_metadata.sh calling a script to create meta data in json format and yml format. This now only creates yaml format from generate_metadata_yml.sh
This PR:
I did this because we originally had generate_event_metadata.sh calling a script to create meta data in json format and yml format. This now only creates yaml format from generate_metadata_yml.sh