Front and back end implementation for Hosts

[erikguntner]

This PR acts as a reference for the creation of a data model, controller, and serializer on the backend. As well as, the generation and utilization of data fetching hooks on the front end.

This PR contains:

• The creation of a Host data model in SQLAlchemy
• The creation of a serializer and deserializer for said model
• The creation of a host controller with get and post routes
• Addition of routes to OpenAPI spec
• Generation of Redux data fetching hooks in services folder
• Adding cache invalidation tags to the host service for the automated refetching and updating of related data
• Creating a hosts page that shows the use of query and mutation hooks to fetch and update data

I added ts-node as a development dependency since it was required by the @rtk-query/codegen-openapi package