publish libraries to avoid users to have to download them one by one

lib/Arduino-IRremote/library.properties

@@ -0,0 +1,9 @@
+name=IRremote
+version=2.2.3
+author=shirriff
+maintainer=shirriff
+sentence=Send and receive infrared signals with multiple protocols
+paragraph=Send and receive infrared signals with multiple protocols
+category=Signal Input/Output
+url=https://github.com/shirriff/Arduino-IRremote.git
+architectures=*