[gnome-builder] device-manager: include missing header

[Christian Hergert <chergert src gnome org>]

commit 913104112b3df1afe7f93a7bc07008b69a2ffcc5
Author: Christian Hergert <christian hergert me>
Date:   Sat Jun 13 12:54:44 2015 -0700

    device-manager: include missing header

 plugins/device-manager/gb-device-manager-plugin.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/plugins/device-manager/gb-device-manager-plugin.c 
b/plugins/device-manager/gb-device-manager-plugin.c
index 8a8aa85..69addb7 100644
--- a/plugins/device-manager/gb-device-manager-plugin.c
+++ b/plugins/device-manager/gb-device-manager-plugin.c
@@ -18,6 +18,7 @@
 
 #include "gb-plugins.h"
 #include "gb-device-manager-panel.h"
+#include "gb-device-manager-resources.h"
 
 GB_DEFINE_EMBEDDED_PLUGIN (gb_device_manager,
                            gb_device_manager_get_resource (),