Support for album and followed artists sync + better matching

[driessamyn]

Hi all,

I made some changes to the code to add support for synchronising albums and also followed artits.
At the same time, I also added support for progressive fuzzy matching, which improved the match ration for me quite a lot.

I created these as 2 PRs with the separate features:

• feat: support sync for albums, including fuzzy match #150 (album sync)
• feat: artist sync #152 (artist sync)

I will maintain a fork here until there's an indication of whether this project will accept the PR.

Dries.