Bidirectional sync between spotify and tidal

[joshrmcdaniel]

Features

• Add ability to sync from tidal to spotify. This was implemented with backwards compatibility and utilizing the existing cache
• Updated some type hints to conform to 3.10

Need to add test code

[timrae]

Hey @joshrmcdaniel, this is a pretty cool idea, but honestly speaking this is outside the scope of the script and I don't really have the time/energy to maintain this new code. I'm not totally against merging it, but in that case I'd rather it were in a self-contained folder src/tidal_to_spotify/*.py with it's own runner script and own config file / cache files. You could refactor out a src/common folder with shared code.

You'd need to maintain the new script yourself though. I haven't really thought about how much shared code there is. If there's a lot then the above suggestion might be a good one. If there's not then perhaps it could just go in its own repo, which might be slightly easier to maintain. If you'd like to go that route instead, you could put it in spotify2tidal/tidal_to_spotify if you like, or keep it in joshrmcdaniel/tidal_to_spotify if you prefer, it's up to you.