Ir esp8266 lib update and code impacts (#235)

* integrate new IRremoteESP8266 lib 2.4.2 and add new protocols

IR_RC6
IR_MITSUBISHI
IR_GICABLE
IR_MITSUBISHI2
IR_LASERTAG
IR_CARRIER_AC
IR_MIDEA
IR_NIKAI
IR_SHERWOOD
IR_DENON
IR_AIWA_RC_T501
IR_JVC

lib/IRremoteESP8266/test/ir_Coolix_test.cpp

@@ -101,7 +101,7 @@ TEST(TestSendCoolix, SendWithRepeats) {
 }
 
 // Test sending an atypical data size.
-TEST(TestSendCoolix, SendUsualSize) {
+TEST(TestSendCoolix, SendUnusualSize) {
   IRsendTest irsend(4);
   irsend.begin();