AP Web Server App (#497)

Auto starts the web server in AP mode with generated SSID and Password.
For small devices.... or any i guess.
Hidden by default.
May need adjustments to suit even smaller screens than the waveshare GEEK.
And a few symbols for good measure. :)

TactilityC/Source/tt_init.cpp

@@ -123,6 +123,8 @@ const esp_elfsym main_symbols[] {
     ESP_ELFSYM_EXPORT(fmaxf),
     ESP_ELFSYM_EXPORT(fmin),
     ESP_ELFSYM_EXPORT(fminf),
+    ESP_ELFSYM_EXPORT(round),
+    ESP_ELFSYM_EXPORT(roundf),
 #ifndef _REENT_ONLY
     ESP_ELFSYM_EXPORT(acos),
     ESP_ELFSYM_EXPORT(acosf),