* Server Sent Events example - issue #7008
Illustrates the use of SSE using ESP8266WebServer
* Update ServerSentEvents.ino
* Create ServerSentEventsMultiClient.ino
* sync
* Update ServerSentEvents.ino
* Update ServerSentEvents.ino
Fix missing variables in printf statments
Fix subscriptioncount not decreasing
Fix SSEBroadcastState (argument sequence wrong)
* Undo the library additions, move to current master
* Fix compiler warning
* Address review and fix multi-sensor updates
Address points of @devyte's code review:
* Use IPAddress vs. uint32_t
* Refactor the URL parsing logic to use strlen vs. sizeof, since there
was some confusion in the original (correct) version
* Minimize copies of WiFiClients while in use
* Use byref access for sensor updates
Fix multi-sensor updates
* Create an update Ticker for each sensor, because the original code
only had one whose callback was overridden by sensorB, meaning sensorA
never changed
* Fix IPv6 build errors
* Remove WiFiClient extraneous copy
Avoid duplicating WiFiClient by using the WiFiClient object embedded in
the subscriber[] array instead.
Co-authored-by: Earle F. Philhower, III <earlephilhower@yahoo.com>
