add support for accessing GAP's state

hw/BLEDevice.h

@@ -143,6 +143,8 @@ public:
 
     ble_error_t addService(GattService &service);
 
+    Gap::GapState_t getGapState(void) const;
+
 private:
     /**
      * Internal helper to udpate the transport backend with advertising data
@@ -338,6 +340,11 @@ BLEDevice::addService(GattService &service) {
     return transport->getGattServer().addService(service);
 }
 
+inline Gap::GapState_t
+BLEDevice::getGapState(void) const {
+    return transport->getGap().getState();
+}
+
 /*
  * ALL OF THE FOLLOWING METHODS ARE DEPRECATED
  */

hw/Gap.h

@@ -90,6 +90,10 @@ public:
         }
     }
 
+    GapState_t getState(void) const {
+        return state;
+    }
+
 protected:
     Gap() :
         state(),