QueueViewController: Initial

This adds a basic play queue handled by the MovieViewController.

Closes #570
3 jobs for !241 with newui__playqueue in 13 minutes and 18 seconds
detached
Status Job ID Name Coverage
  Lint
passed #464880
macos
lint

00:04:08

 
  Build
passed #464881
macos
iOS 12.0

00:09:09

passed #464882
macos
tvOS 12.0

00:09:02