Improve measure performance and measure `trigger` as well

[runspired]

This moves us to using performance.mark and performance.measure instead of console.time and console.timeEnd which reduces the overhead of instrumentation. Further: it instruments Evented's trigger method in a way that catches

• events on Services that implement Evented (by reopening the Evented mixin)
• events on Models (by reopening with the Trigger override)
• events on Components (by reopening with the Trigger override)

It avoids looking up and reopening DS.Model if ember-data is not present.

We may want to add it to Route as well, but I was unsure if Route implemented Evented by default and didn't want to introduce it if not.

[runspired]

cc @stefanpenner I updated this.

[stefanpenner]

released as v1.2.0 🎉