Create library.properties (#5128)

This file need to using this library in Eclipes CDT Arduino.
Without this file the library manager doesn't listing this library.

Author: sadykowich

libraries/ESP8266LLMNR/library.properties

@@ -0,0 +1,10 @@
+name=ESP8266LLMNR
+version=1.0
+author[email protected]
+maintainer[email protected]
+sentence=ESP8266 LLMNR (Link-Local Multicast Name Resolution)
+paragraph=This is a simple implementation of an LLMNR responder the ESP8266 Arduino package. Only support for advertizing a single hostname is currently implemented.
+category=Communication
+url=
+architectures=esp8266
+dot_a_linkage=true