Provide roles and permission for the control user

Add the roles and their permissions for the user the control connection
is connected as along with updates when these change.  This enables the
web interface to know which permissions it has available to it.

test/integration/index.js

@@ -49,6 +49,8 @@ class TestControl extends libLink.Link {
 
 	async debugWsMessageEventHandler() { }
 
+	async accountUpdateEventHandler() { }
+
 	async slaveUpdateEventHandler(message) {
 		this.slaveUpdates.push(message.data);
 	}