Add rest-dbus DBUS Introspecting REST server.

 -recipe and supporting files/patches
diff --git a/common/recipes-phosphor/rest-dbus/files/no-session-bus.patch b/common/recipes-phosphor/rest-dbus/files/no-session-bus.patch
new file mode 100644
index 0000000..d68a037
--- /dev/null
+++ b/common/recipes-phosphor/rest-dbus/files/no-session-bus.patch
@@ -0,0 +1,12 @@
+Index: git/rest-dbus
+===================================================================
+--- git.orig/rest-dbus
++++ git/rest-dbus
+@@ -8,7 +8,6 @@ import os
+ from xml.etree import ElementTree
+ 
+ busses = {
+-    'session': dbus.SessionBus,
+     'system': dbus.SystemBus,
+ }
+