* Update ESP8266SSDP.h
Fix SSDP bug: The response to M-Search Packet with ST field set to UUID should be with the UUID not the Device Type
Integrated 'uuid:' prefix into the char array of the _uuid
* Update ESP8266SSDP.cpp
Fix SSDP bug: The response to M-Search Packet with ST field set to UUID should be with the UUID not the Device Type
Integrated 'uuid:' prefix into the char array of the _uuid
* include 'uuid:' in format String and in flash
* Update ESP8266SSDP.cpp