Update IRRemote ESP8266 to 2.6.2 and add ESP32 support

lib/IRremoteESP8266/test/ir_MWM_test.cpp

@@ -36,6 +36,7 @@ TEST(TestSendMWM, SendDataOnly) {
   */
   irsend.sendMWM(test1, sizeof(test1), 0);
   EXPECT_EQ(
+      "f38000d25"
       "m834s834m417s417m834s834"
       "m417s417m834s834m1251s417"
       "m2085s417m1251s417"
@@ -65,6 +66,7 @@ TEST(TestSendMWM, SendDataOnly) {
   };
   irsend.sendMWM(test2, sizeof(test2), 0);
   EXPECT_EQ(
+      "f38000d25"
       "m417s417m834s834m834s834"
       "m834s834m834s417m834s417"
       "m834s834m834s834m417s417"