🚀add log to scan module

Author: Philip Zhang

android/src/main/java/com/pdascan/PdaScanModule.java

@@ -88,6 +88,7 @@ private void sendEvent(ReactContext reactContext, String eventName, WritableMap
           params);
     }
     public PdaScanModule(ReactApplicationContext reactContext) {
+      Log.i("PdaScannerPlugin", "PdaScanModule start");
         super(reactContext);
         this.reactContext = reactContext;
         IntentFilter xmIntentFilter = new IntentFilter();