* Start to port over provisioner daemons PR
* Move to Enterprise
* Begin adding tests for external registration
* Move provisioner daemons query to enterprise
* Move around provisioner daemons schema
* Add tags to provisioner daemons
* make gen
* Add user local provisioner daemons
* Add provisioner daemons
* Add feature for external daemons
* Add command to start a provisioner daemon
* Add provisioner tags to template push and create
* Rename migration files
* Fix tests
* Fix entitlements test
* PR comments
* Update migration
* Fix FE types
* fix: Add `SIGHUP` and `SIGTERM` handling to `coder server`
To prevent additional signals from aborting program execution, signal
handling was moved to the beginning of the main function, this ensures
that signals stays registered for the entire shutdown procedure.
Fixes#1529
