This replaces all `nx` commands with `turbo` commands and removes Nx from the repository. All of the `project.json` files have been removed and any commands that broke with Turborepo have been adjusted.
This contains the basic framework for our new `monorepo-merge`
command. The goal will be for this command to handle the heavy lifting
for merging repositories with full history. It will (ideally) bring any
plugin or package into the repository in a ready-to-use state.