gstreamer: 1.15.1 -> 1.16.0

Changes needed:

* core: dbghelp disabled as it's not needed
* core: Fixed script not being executable and skipped by patchShebangs
* base: gtk_doc disabled because of wayland symbol error
* ges: Patch removed that was merged upstream:
  https://bugzilla.gnome.org/show_bug.cgi?id=794856#c16

pkgs/development/libraries/gstreamer/bad/default.nix

@@ -49,7 +49,7 @@ let
 in
 stdenv.mkDerivation rec {
   name = "gst-plugins-bad-${version}";
-  version = "1.15.1";
+  version = "1.16.0";
 
   meta = with stdenv.lib; {
     description = "Gstreamer Bad Plugins";
@@ -75,7 +75,7 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
     url = "${meta.homepage}/src/gst-plugins-bad/${name}.tar.xz";
-    sha256 = "0dpky8a0pbwwkc5r8hawi5yizdqk65j9liwvhxkjwbnpv53n5y10";
+    sha256 = "019b0yqjrcg6jmfd4cc336h1bz5p4wxl58yz1c4sdb96avirs4r2";
   };
 
   outputs = [ "out" "dev" ];