feat: Add experimental rewrite of go2rtc live provider (MSE/WebRTC/MP4/MJPEG) (#2580)

- Closes #2556
- Closes #2450

**Key intended features:**
 - go2rtc compatible
- 100% test coverage to significantly improve ability to test, maintain
and work around browser weirdnesses (e.g. Safari).
 - Written from the ground up in the style of the rest of the project.

**To use:**
 - Change `live_provider` from `go2rtc` to `go2rtc-experimental`.

src/utils/basic.ts

@@ -352,10 +352,6 @@ export const ignoreFunctionIdentity = (a: unknown, b: unknown): boolean | undefi
     ? typeof a === 'function' && typeof b === 'function'
     : undefined;
 
-export const convertHTTPAdressToWebsocket = (url: string): string => {
-  return url.replace(/^http/i, 'ws');
-};
-
 export const forceReflow = (element: HTMLElement): void => {
   // Force reflow by measuring the height.
   void element.offsetHeight;