Feature request name
Expose START and END phase of PlayerTick event

Feature request description
crafttweaker.event.PlayerTickEvent is fired two times per tick, at the beginning and at the end.
Could you please expose the two sub-events?

Feature request reason
It will be convenient to be able to call something exactly one time per tick. Periodical events will be easier to control, and the script will look simpler.

Feature request dependencies
None