* Use standard JSON flags for project command
Deprecates the --format flag and adds the standard JSON flags to properly filter, template, and write JSON.
* Add format flags cmdutil
Resolves PR feedback
* Remove unnecessary fields from JSON format flags
* Add standard format help to remaining commands
* Add JSON format regression tests
Also fixed a number of `project` commands that didn't format the right object as JSON.
* Resolve PR feedback
* Use the host name from the logged in server for codespace commands
* Fix existing tests
* Add tests for server url configuration
* Rename defaultApiUrl to defaultAPIURL and comment cleanup
* Switch to t.Setenv in codespaces api tests
* Switch to t.Setenv in other tests
* Support custom server in web flows for list and create
* Rename GetServerURL() to ServerURL()
