CLI application

• Refactors scripts as a CLI application with commands for creating new collections, adding content to existing collections, and reconciling metadata against a directory of files.
• Includes tests and updated dependencies.
• Removes the previous collection of self-contained scripts that can be found in release 1.0.

Self-contained Scripts

This release contains versions of these scripts that operate entirely independently aside from a secrets.py file. In order to avoid code duplication, repeated code blocks will soon be extracted as separate functions that will be called for easier maintenance and testing.