The Timer class allows you to create asynchronous timers on platforms that
support events.
The intended usage is to create an instance of the Timer class with a given
interval, set its run() method to a custom function to be invoked and
eventually call stop() to stop the Timer.
Note that a running Timer may or may not prevent the program to exit
automatically when main() returns.
It is also possible to extend this class and override its run() method in
the child class.
Notice for threaded targets:
Timer instances require threads they were created in to run with Haxe's event loops.
Main thread of a Haxe program always contains an event loop. For other cases use
sys.thread.Thread.createWithEventLoop and sys.thread.Thread.runWithEventLoop methods.