Update IRRemoteESP8266 version to 2.5.5

factorize IR send signal function between the 2 types of receiving
Add new IRRemoteESP8266 protocols
replace pins on mega according schema
remove unecessaries spaces

lib/IRremoteESP8266/.gitignore

@@ -35,8 +35,12 @@ test/*_test
 tools/*.o
 tools/*.a
 tools/gc_decode
+tools/mode2_decode
 
 .pioenvs
 .piolibdeps
 .clang_complete
 .gcc-flags.json
+
+#Cygwin builds
+*.exe