1124 move chapters and credits data into tracks

[StaehliJ]

Pull request

Description

The goal of this PR is to move back the Chapter and Credits into the player tracks. The benefit of that strategy is to make them immutable. The PR also add custom callback to notify user when they changed.

Changes made

• Introduce PillarboxMetadata that store chapters, credits and blocked time ranges
• Add callback onPillarboxMetadataChanged to PillarboxPlayer.Listener
• Add currentPillarboxMetadata to PillarboxPlayer
• Add currentCredits to PillarboxPlayer
• Add currentChapters to PillarboxPlayer
• Add currentBlockedTimeRanges to PillarboxPlayer
• Update PillarboxMediaSession and PillarboxMediaController

Checklist

• APIs have been properly documented (if relevant).
• The documentation has been updated (if relevant).
• New unit tests have been written (if relevant).
• The demo has been updated (if relevant).

[github-actions]

Code Coverage

Overall Project	45.82% -2.43%	🟢
Files changed	26.94%	🟢

Module	Coverage
:pillarbox-core-business	78%	🟢
:pillarbox-player	54.12% -5.06%	🟢
:pillarbox-cast	20.23% -0.18%	🟢
:pillarbox-cast-receiver	20.05% -0.15%	🟢
:pillarbox-ui	0.26% -0.51%	🟢

Files

Module	File	Coverage
:pillarbox-core-business	DefaultMediaMetaDataProvider.kt	98.77%	🟢
	SRGAssetLoader.kt	90.69%	🟢
:pillarbox-player	PillarboxMetadataTrackGroup.kt	100%	🟢
	Asset.kt	100%	🟢
	BlockedTimeRangeTracker.kt	98.93%	🟢
	PillarboxMediaMetaDataTracker.kt	97.85% -0.54%	🟢
	PillarboxMetadata.kt	96.88% -3.13%	🟢
	PillarboxMediaPeriod.kt	95.3%	🟢
	Tracks.kt	90.24%	🟢
	PillarboxMediaSource.kt	87.45%	🟢
	PillarboxExoPlayer.kt	75.41% -0.5%	🟢
	PillarboxEventLogger.kt	72.03%	🟢
	PillarboxAnalyticsCollector.kt	70.53%	🟢
	PlayerCallbackFlow.kt	63.93% -4.33%	🟢
	Player.kt	35.07%	🟢
	PillarboxPlayer.kt	4.31% -69.83%	🟢
	PillarboxAnalyticsListener.kt	0% -14.29%	🟢
	PillarboxSessionCommands.kt	0% -63.08%	🟢
	PillarboxMediaController.kt	0% -15.48%	🟢
	PillarboxMediaSession.kt	0% -16.1%	🟢
	MediaSessionCallbackImpl.kt	0% -27.81%	🟢
:pillarbox-cast	PillarboxCastPlayer.kt	1.07% -0.31%	🟢
:pillarbox-cast-receiver	PillarboxCastReceiverPlayer.kt	0% -0.45%	🟢
:pillarbox-ui	ComposablePlayer.kt	0% -2.28%	🟢