[libdazzle] add dzl-property-group.h to dazzle.h

[Christian Hergert <chergert src gnome org>]

commit d033f6a136a30e2fd8db99c241c673d03345ab3e
Author: Christian Hergert <chergert redhat com>
Date:   Fri Jul 7 02:02:25 2017 -0700

    add dzl-property-group.h to dazzle.h

 src/dazzle.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/dazzle.h b/src/dazzle.h
index 7ec51b0..dce57c5 100644
--- a/src/dazzle.h
+++ b/src/dazzle.h
@@ -34,6 +34,7 @@ G_BEGIN_DECLS
 #define DAZZLE_INSIDE
 #include "dzl-version.h"
 #include "actions/dzl-child-property-action.h"
+#include "actions/dzl-properties-group.h"
 #include "actions/dzl-settings-flag-action.h"
 #include "actions/dzl-widget-action-group.h"
 #include "animation/dzl-animation.h"