[FEATURE REQUEST] Respont to multiple device types or callback?

[f34rdotcom]

Currently the API accepts a single device type. UPNP clients normally look for a root device then read device xml. The xml contains the real device type but the search target header is
"ST: upnp:rootdevice"

So setting the device SSDP.setDeviceType() to say upnp:rootdevice works for discovery to start but fails because the xml device info schema will contain the wrong device type.
<deviceType>upnp:rootdevice</deviceType>

In my case my actual device type is "urn:schemas-upnp-org:device:Basic:1" but I need to respond to "upnp:rootdevice" and "ssdp:all" also the search term reply header is supposed to be the same as the ST in the search regardless of the actual device type.

Maybe this is best handled in a callback of some type? The ability to respond to multiple device types is a good feature but in most cases just one is enough provided the above rootdevice and ssdp:all are also returning a valid reply.

[luc-github]

to be honest I did the porting 2 years ago without any knowledge of upnp protocol, I just wanted to get the icon of ESP32 in window just like for ESP8266 ^_^
I will need some time to refresh my brain on this code,but I think it should not be a big issue to respond to multiple device types. 🤞

[luc-github]

what about a dynamic array builded by void addDeviceType(const char *deviceType); where void setDeviceType(const char *deviceType); would become an alias for backward compatibility
each call to the function would add it to the list

and void removeDeviceType(const char *deviceType); and void clearDeviceType(); would handle the list content