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`.

eslint.config.mjs

@@ -106,7 +106,7 @@ export default defineConfig([
     languageOptions: {
       parser: tsParser,
       parserOptions: {
-        project: './tsconfig.json',
+        projectService: true,
         tsconfigRootDir: __dirname,
       },
     },