Add the setter counter part of Player.getMaxSeekToPreviousPosition() #1425

Use case description

Currently, the Player interface provides a getMaxSeekToPreviousPosition() method, which returns a delay after which the player seeks to the previous item, instead of restarting the current item, when calling Player.seekToPrevious(). That delay is currently hardcoded to C.DEFAULT_MAX_SEEK_TO_PREVIOUS_POSITION_MS (3 seconds).
There is also a Player.Listener.onMaxSeekToPreviousPositionChanged(long) method, which is called when the delay changes. However, as far as we could see, there is currently no Player.setMaxSeekToPreviousPosition(long) method, allowing us to customise that delay.

Proposed solution

Provide a Player.setMaxSeekToPreviousPosition(long) method se the delay can be freely customised by developers.
If this request seems reasonable to you, I'm open to work on a PR to help integrate it in Media3.

Alternatives considered

Keep working with the current default delay.