Update IRRemote ESP8266 to 2.6.2 and add ESP32 support

lib/IRremoteESP8266/examples/IRGCTCPServer/IRGCTCPServer.ino

@@ -37,10 +37,13 @@
  * can check your wifi router for it's address.
  */
 
-#ifndef UNIT_TEST
 #include <Arduino.h>
-#endif
+#if defined(ESP8266)
 #include <ESP8266WiFi.h>
+#endif  // ESP8266
+#if defined(ESP32)
+#include <WiFi.h>
+#endif  // ESP32
 #include <IRremoteESP8266.h>
 #include <IRsend.h>
 #include <WiFiClient.h>