A sequence of modifications due to that upper layer (org.opendaylight.controller.flows.web.Flows) would need InventoryServiceShim to provide "SupportedFlowActions" instead of just "Actions" which is used in earlier

(cherry picked from commit 525e13895ad8a707f7cdf4fe72c5f516f2ec8042)

Change-Id: I937ff1fedface1e9365c9100bc4c6bb9357320ab
Signed-off-by: ylhsieh <ylhsieh@itri.org.tw>