added time to interactive metrics, refactored metrics to use traits

changed task macro to take pipeline info

components/script/task_source/user_interaction.rs

@@ -37,6 +37,7 @@ impl TaskSource for UserInteractionTaskSource {
         let msg = MainThreadScriptMsg::Common(CommonScriptMsg::Task(
             ScriptThreadEventCategory::InputEvent,
             Box::new(canceller.wrap_task(task)),
+            None
         ));
         self.0.send(msg).map_err(|_| ())
     }