Json property additions

[hellkite500]

Supports future development and use of JSONProperties with a couple simple enhancements.

Additions

• print_property function to pretty print a JSONProperty (recursively) with indentation.
• A copy constructor that takes a new key to assign to the copied property

Testing

1. Added simple test of print_property function
2. Added unit test for new constructor

Checklist

• PR has an informative and human-readable title
• Changes are limited to a single goal (no scope creep)
• Code can be automatically merged (no conflicts)
• Code follows project standards (link if applicable)
• Passes all existing automated tests
• Any change in functionality is tested
• New functions are documented (with a description, list of inputs, and expected output)
• Placeholder code is flagged / future todos are captured in comments
• Project documentation has been updated (including the "Unreleased" section of the CHANGELOG)
• Reviewers requested with the Reviewers tool ➡️

Target Environment support

• Linux
• MacOS