feat: Add APIs for querying workspaces (#61)

* Add SQL migration

* Add query functions for workspaces

* Add create routes

* Add tests for codersdk

* Add workspace parameter route

* Add workspace query

* Move workspace function

* Add querying for workspace history

* Fix query

* Fix syntax error

* Move workspace routes

* Fix version

* Add CLI tests

* Fix syntax error

* Remove error

* Fix history error

* Add new user test

* Fix test

* Lower target to 70%

* Improve comments

* Add comment

codecov.yml

@@ -16,7 +16,7 @@ coverage:
   status:
     project:
       default:
-        target: 75%
+        target: 70%
         informational: yes
 
 ignore: