Provide the ability to manage entities

[dsietz]

If we provide the ability to manage addresses as a feature to the engineer then they will be able to easily and quickly manage related addresses in a repeatable manner:

• Person
• Organization

To validate this, we will:

• [x] Demonstrate that address can be added
• [x] Demonstrate that addresses can be searched by category
• [x] Demonstrate that address can be removed
• [x] Confirm all tests pass
• [x] Ensure all documentation is up to date