Create single script for batch transfers, refactor Setup.py and Youtube.py

[PattoMotto]

• Refactor Setup.py and Youtube.py so they can be called from another script.
• Create SpotifyToYoutube.py which requires youtube_headers_raw.txt and spotify_playlists.txt
• Add example
• Update documents

[sigma67]

Looks like some useful changes at first glance, although a bit difficult to compare since so many things were changed.

Is it backwards compatible with existing setups?

[PattoMotto]

@sigma67
I upgraded the Setup script.

Before
python Setup.py musicmanager
After
python Setup.py --musicmanager OR python Setup.py -mm

Before
python Setup.py mobileclient
After
python Setup.py --mobileclient OR python Setup.py -mc

Before
python Setup.py youtube
After
python Setup.py --youtube OR python Setup.py -yt

And the new headers_raw
python Setup.py --youtube --headers_raw "HEADERS"

Please let me know if you've any concerns with this upgrade.

[sigma67]

Yes, but that's not all you changed. There's also many changes to YouTube.py. You also didn't answer my question about backwards compatibility.

[PattoMotto]

There's also many changes to YouTube.py. You also didn't answer my question about backwards compatibility.

YouTube.py will be 100% backward compatible.
I just moved YTMusicTransfer to another file and modify the main method argument getter.
Which still work when you call YouTube.py directly.

[lucasrangit]

@PattoMotto , @sigma67 I can try and tease out some of these changes into smaller commits if either of you don't have time. I see some useful changes and improvements.

[sigma67]

For sure, the main thing that prevented me from looking at it was the size of the change and I wasn't sure if it was compatible with my own app branch

[PattoMotto]

@lucasrangit Thanks :)