Unified interface a bit more

TinyGsmClientA6.h

@@ -315,6 +315,17 @@ public:
     return false;
   }
 
+  /*
+   * WiFi functions
+   */
+  bool networkConnect(const char* ssid, const char* pwd) {
+    return false;
+  }
+
+  bool networkDisconnect() {
+    return false;
+  }
+
   /*
    * GPRS functions
    */