Add docs for local dev chain with Halibut

[samdanaei]

Background

We face significant delays when we rely on TeamCity to build and generate packages when we want to test out a change in Tentacle/Server.

Results

This documentation outlines how to set up a local dev environment with Nuget Local package feeds to speed up debugging/development.

How to review this PR

Quality :heavy_check_mark:

Pre-requisites

• [ ] I have read How we use GitHub Issues for help deciding when and where it's appropriate to make an issue.
• [ ] I have considered informing or consulting the right people, according to the ownership map.
• [ ] I have considered appropriate testing for my change.