Add synchronised lyrics frame

[chicio]

Add synchronised lyrics frame

Additional context

• see https://id3.org/id3v2.3.0#Synchronised_lyrics.2Ftext

[sunzongzheng]

Is this planned?

[chicio]

Ho @sunzongzheng , not plan ed at the Moment. Do you want to give it a try and try to implement it with a PR? It will be amazing 🙏🚀