refactor: add listener methods

Author: iagormoraes

android/src/main/java/com/reactnativesocketio/SocketIoModule.kt

@@ -72,6 +72,12 @@ class SocketIoModule(private val reactContext: ReactApplicationContext) : ReactC
     return mSocketList[path]
   }
 
+  @ReactMethod
+  fun addListener(eventName: String) {}
+
+  @ReactMethod
+  fun removeListeners(count: Int) {}
+
   @ReactMethod
   fun initialize(url: String, options: ReadableMap, callback: Callback) {
     try {