v0.7.1

Some quality of life features and fixes for playlist interaction are featured in this minor release.

Features ✨

• create_playlist supports video_ids and source_playlist parameters
• edit_playlist allows moving playlist items (thanks @nforro )
• edit_playlist allows adding a playlist to another playlist

Fixes 🐞

• create_playlist now returns the full response if there was an error (i.e. the quota may be exhausted, check #19)
• get_playlist no longer returns deleted songs
• get_playlist no longer throws an error if playlist has no description (thanks @hematogender )