Add configurable progress listener

I already look in the code, documentation and search in stack overflow.
I see the `PlayerControlView` have `ProgressUpdateListener` interface which similar that what I need. But not sure how to use it or can even use it

I wanted to have a `player.currentPosition` listener for my player
But I'm not sure how to do it.

So far I just use `Handler()` and `Runnable()` to get the `currentPosition` but it is not accurate since the start of the `Runnable()` can be out of sync with the played video

Is there any kind of function or workaround for this?