add new DDNS

GREAT WORK!!!!
just to mention some suggestions - im using dynu.com on another device for DDNS service, its supported by default. im happy with that DDNS provider because it is free and doesnt expire
but that other device also support adding custom DDNS service, im attaching some screenshots how it is implemented as user interface, it seems useful option
just to mention some suggestions - im using dynu.com on another device for DDNS service, its supported by default. im happy with that DDNS provider because it is free and doesnt expire
but that other device also support adding custom DDNS service, im attaching some screenshots how it is implemented as user interface, it seems useful option