Schedule a callback to fire given a timeout in milliseconds using the excalibur Clock
This is useful to use over the built in browser
setTimeout because callbacks will be tied to the
excalibur update clock, instead of browser time, this means that callbacks wont fire if the game is
stopped or paused.
callback to fire
Optionally specify a timeout in milliseconds from now, default is 0ms which means the next possible tick
The TestClock is meant for debugging interactions in excalibur that require precise timing to replicate or test