[libdazzle] includes: add dzl-action-group.h from dazzle.h

[Christian Hergert <chergert src gnome org>]

commit 046b8f8a5a2bc2d268e03db5d68dc122f363449e
Author: Christian Hergert <chergert redhat com>
Date:   Wed Oct 4 21:36:05 2017 -0700

    includes: add dzl-action-group.h from dazzle.h

 src/dazzle.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/dazzle.h b/src/dazzle.h
index 82d801f..c5657bb 100644
--- a/src/dazzle.h
+++ b/src/dazzle.h
@@ -33,6 +33,7 @@ G_BEGIN_DECLS
 
 #define DAZZLE_INSIDE
 #include "dzl-version.h"
+#include "actions/dzl-action-group.h"
 #include "actions/dzl-child-property-action.h"
 #include "actions/dzl-properties-group.h"
 #include "actions/dzl-settings-flag-action.h"