tortoisehg: Add qt5.qtwayland support

pkgs/applications/version-management/tortoisehg/default.nix

···
     qscintilla-qt5
     iniparse
   ];
+  buildInputs = [
+    # Makes wrapQtAppsHook add these qt libraries to the wrapper search paths
+    qt5.qtwayland
+  ];
 
   # In order to spare double wrapping, we use:
   preFixup = ''