Script directory structure

Process:

1. On deploy(.stg).gitlab.com:
2. cp ./bin/source_vars_template.sh ./bin/source-vars
3. vi ./bin/source-vars and edit the parameters, setting the required parameters, adding any secrets we don't with to keep in the source code, and double-checking the remaining parameters`
4. Follow the issue template scripts, with references to the relevant scripts.

Bonus Features

1. Using CI, ensures all markdown references to scripts are correct
2. Using CI, all scripts are validated with shellcheck