feat!: refactor to AutoRegister facets to schema.

[justlevine]

What

Refactors the plugin to autoregister facets to the schema. WIP

• Autogenerate Facet config objects
• Register where args for each Facet to every RootQueryTo{$PostType}Connection.
• Register connection edge fields for active facets.
• Evaluate and integrate Facet pager input and edge field.
• Autogenerate GraphQL interfaces for individual Facet settings. (Related Map string settings to appropriate types #11 . May be punted to a separate PR/release 🤔)

Why

Closes #31

How

See changelog

Testing Instructions

Additional Info

Checklist:

• My code is tested to the best of my abilities.
• My code follows the WordPress Coding Standards.
• My code has proper inline documentation.
• I have added unit tests to verify the code works as intended.
• The changes in this PR have been noted in CHANGELOG.md