This PR makes WebThing API server port changeable from hardcoded '80'.
Example:
// Default port is 80
adapter = new WebThingAdapter("human-sensor", WiFi.localIP())
// Now you can change port from 80 to any port you want
adapter = new WebThingAdapter("human-sensor", WiFi.localIP(), 8080)
This PR makes WebThing API server port changeable from hardcoded '80'.
Example: