Coverload: Custom app covers

Custom app switcher covers for Sailfish OS, for any app, including Android apps
running under AppSupport. More covers can be installed as separate RPMs.

Built-in covers:

Media controls: track, artist, album art and playback buttons for apps with an MPRIS player.
Notifications: the app's newest notifications and their count, with optional message text and a clear button.
Privacy: the app's icon and name on the ambience background or over a blurred preview, for banking, 2FA or chat apps.

Source Code available at: https://github.com/jplexer/coverload