[Cast] Support shuffle mode

[MGaetan89]

Use case description

Currently (as of version 1.5.1), CastPlayer does not support shuffle mode:

getShuffleModeEnabled():

media/libraries/cast/src/main/java/androidx/media3/cast/CastPlayer.java

Lines 629 to 633 in 76088cd

	@Override
	public boolean getShuffleModeEnabled() {
	// TODO: Support shuffle mode.
	return false;
	}

setShuffleModeEnabled(boolean):

media/libraries/cast/src/main/java/androidx/media3/cast/CastPlayer.java

Lines 624 to 627 in 76088cd

	@Override
	public void setShuffleModeEnabled(boolean shuffleModeEnabled) {
	// TODO: Support shuffle mode.
	}

I didn't find any issue/PR open related to this feature. Is there any blocker to support it?

Alternatives considered

We're currently experimenting with our own simple implementation that looks like (we updated the list of available commands):

override fun getShuffleModeEnabled(): Boolean {
    return false
}

override fun setShuffleModeEnabled(shuffleModeEnabled: Boolean) {
    remoteMediaClient?.queueShuffle(null)
}

But we're not sure if that's the way to go.