wanna be able to use a predefined WHIP service.

[lenaky]

To connect to the WHIP service, you must select WHIP in Settings and enter your address.

It would be nice to be able to add it to a json file like any other RTMP service.

I've made a quick PR without much understanding of obs-studio, so I'd appreciate any reviews and feedback.

https://github.com/obsproject/obs-studio/pull/10105