Add support for NPR

Thank you for contributing! I think we are almost there, I just found a few nitpicks with the code but after that we'll be good to go.

1. +++ b/media_remote.module
   @@ -65,6 +65,14 @@ function media_remote_theme($existing, $type, $theme, $path) {
   +        'type' => NULL,
   

   Are we using this `type` variable or is it just leftover from other formatters?

2. +++ b/src/Plugin/Field/FieldFormatter/MediaRemoteNPRFormatter.php
   @@ -0,0 +1,127 @@
   +        '#type' => $matches[1][0],
   

   Again, do we need the type here?

3. +++ b/templates/media-remote-npr.html.twig
   @@ -0,0 +1,14 @@
   + * Template implementation for the media_remote_buzzsprout theme hook.
   

   Copy/paste leftover?

4. +++ b/templates/media-remote-npr.html.twig
   @@ -0,0 +1,14 @@
   + * - type: (string) The type of this content: document, spreadsheets or
   

   We don't seem to be using the type, we could just remove it here I think.

Looks great, thanks for contributing!