Feature: Add a Song to the Queue

[digitaldrummerj]

I would like to request an action to add a song to the queue of songs being played. It looks like the Spotify API call is https://developer.spotify.com/documentation/web-api/reference/add-to-queue

[bevanjkay]

I have opened a PR to add the feature - #66

[digitaldrummerj]

Thank you for the quick response.