chore: Separate the provisionerd server into it's own package (#4940)

* chore: Separate the provisionerd server into it's own package

This code should be thoroughly tested now that we understand the abstraction.

I separated it to make our lives a bit easier for external provisioner daemons
as well!

* Add tests

* Add workspace builds

* Add test for workspace resources

.vscode/settings.json

@@ -88,6 +88,7 @@
     "promptui",
     "protobuf",
     "provisionerd",
+    "provisionerdserver",
     "provisionersdk",
     "ptty",
     "ptys",