Provide lxqt-branding so the Debian LXQt branding is not pulled in.

debian/changelog

@@ -1,3 +1,9 @@
+lubuntu-artwork (19.04.2) UNRELEASED; urgency=medium
+
+  * Provide lxqt-branding so the Debian LXQt branding is not pulled in.
+
+ -- Simon Quigley <tsimonq2@ubuntu.com>  Sat, 09 Mar 2019 16:06:53 -0600
+
 lubuntu-artwork (19.04.1) disco; urgency=medium
 
   * Bump the version to be partial release-based partial semver-based rather

debian/control

@@ -14,6 +14,7 @@ Architecture: all
 Depends: ${misc:Depends}
 Conflicts: lubuntu-artwork-18-04 (<< 1.0)
 Replaces: lubuntu-artwork-18-04 (<< 1.0)
+Provides: lxqt-branding
 Description: artwork for Lubuntu
  Artwork for Lubuntu which contains the default wallpaper and default theming.