Song projection

[batonac]

It would be really cool to integrate with a public provider such as http://my.hymnary.org/

In that case, they make their song list available via https://my.hymnary.org/sites/default/files/song/info/songListPD.json

Demo is here: https://my.hymnary.org/flexpresent-preview/

[Rewryte]

This is a feature I plan to add eventually, but with a lyric API for access to a wider range of songs. Was considering the Genius API (https://docs.genius.com/#/getting-started-h1), but the requirement for the user to log in to their Genius account does not fit well with Congregation's design.