Initialize the routing running state

The routing manager running state appears uninitialised, which can (and has) resulting in routingmanagerd starting up in a suspend state.

implementation/routing/include/routing_manager_base.hpp

@@ -348,7 +348,7 @@ class routing_manager_base : public routing_manager,
     std::string env_;
 
     std::mutex routing_state_mutex_;
-    routing_state_e routing_state_;
+    routing_state_e routing_state_{routing_state_e::RS_RUNNING};
 
 private:
     services_t services_;