Factory reset feature (#114)

Implemented factory-reset feature
Extract factory settings into separate ini file
Hide reset/factory reset from guest user

Co-authored-by: kasedy <kasedy@gmail.com>

lib/framework/SecurityManager.h

@@ -3,10 +3,13 @@
 
 #include <ArduinoJsonJWT.h>
 #include <ESPAsyncWebServer.h>
+#include <ESPUtils.h>
 #include <AsyncJson.h>
 #include <list>
 
-#define DEFAULT_JWT_SECRET "esp8266-react"
+#ifndef FACTORY_JWT_SECRET
+#define FACTORY_JWT_SECRET ESPUtils::defaultDeviceValue()
+#endif
 
 #define ACCESS_TOKEN_PARAMATER "access_token"