Build settings docs from setting schema

[lampwins]

As a nautobot engineer, I want the docs for settings to be automatically built from the settings JSONSchema, so that I have incentive to maintain the schema, because I do not have to manually maintain the settings docs.

• Build mkdocs plugin to generate settings docs from the JSONSchema in JSONSchema for core settings #5097
• Ensure tooling is built such that apps can consume it in the future for the same purpose
• Integrate settings docs into overall docs build

[HanlinMiao]

1. Remove optional_settings.md and required_settings.md
2. Create jinja2 templates for those two files.
3. Add a script to a Gen-Files plugin to render the jinja templates using the JSONSchema as inputs

[gsnider2195]

Look at using https://pypi.org/project/mkdocs-macros-plugin/ for rendering the jinja2

[gsnider2195]

Fixed by #5363