fix: Improve 2-way audio detection (#2293)

- For Frigate cameras, you must be running at least [integration
v5.12.0](https://github.com/blakeblackshear/frigate-hass-integration/releases/tag/v5.12.0).
 - Closes: #2191 

Includes a significant refactor of cameras, and the introduction of a
`2-way-audio` capability that is dynamically fetched from `go2rtc`. One
gotcha is if you previously had a substream with 2-way audio, you may
need to modify

```yaml
 - camera_entity: camera.foo
    capabilities:
      disable_except:
        - substream
```

... to ...

```yaml
 - camera_entity: camera.foo
    capabilities:
      disable_except:
        - substream
        - 2-way-audio
```

tests/camera-manager/tplink/engine-tplink.test.ts

@@ -45,15 +45,10 @@ describe('TPLinkCameraManagerEngine', () => {
     expect(camera.getConfig()).toBe(config);
     expect(camera.getEngine()).toBe(engine);
     expect(camera.getCapabilities()?.getRawCapabilities()).toEqual({
-      'favorite-events': false,
-      'favorite-recordings': false,
-      clips: false,
+      '2-way-audio': false,
       'remote-control-entity': true,
       live: true,
       menu: true,
-      recordings: false,
-      seek: false,
-      snapshots: false,
       substream: true,
       trigger: true,
     });