Queue improvements

[puckey]

A few improvements to functionalities relying on updates of the underlying SwiftAudioEx and KotlinAudio libraries.

SwiftAudio updates pr: https://github.com/doublesymmetry/SwiftAudioEx/pull/28.
KotlinAudio updates pr: https://github.com/doublesymmetry/KotlinAudio/pull/50

Feature

• Implement TrackPlayer.load(track): replaces the current track with the supplied track or creates a track when the queue is empty. This feature would mainly be used by simple single track apps – for example a radio station app
• Implement TrackPlayer.move(fromIndex, toIndex)
• Implement TrackPlayer.getProgress()
• Deprecate TrackPlayer.getBufferedPosition(), TrackPlayer.getDuration(), TrackPlayer.getPosition().

Fix

• Queue methods that modify the queue no longer mutate playWhenReady, so when TrackPlayer is in playing mode it stays so and opposite (https://github.com/doublesymmetry/react-native-track-player/issues/1691)
• Calling TrackPlayer.remove(index) on the current track no longer throws, instead it activates the next track (or the first track if there is no next track).
• Calling TrackPlayer.jump(index) where index is the index of the active track no longer throws, instead it causes the track to be restarted.