Allow birdseye to be overridden at the camera level

[NickM-27]

Implementation of #2582

[NickM-27]

I think this is pretty simple, just not sure on the docs since the width, height, quality are not overridable at the camera level. Should there just be a note on those ones specifically to say they aren't overridable?

I created the separate BirdseyeCameraConfig object to throw an error if those values are set at the camera level

[blakeblackshear]

If you disable globally and then enable a single camera, does that enable Birdseye for the one camera?

[NickM-27]

With birdseye disabled globally, there is no option in the sidebar. If I bypass that then it still isn't enabled as the global check to add the converter["birdseye"] doesn't go through. Not sure what the best behavior would be; I could add a warning in the config if it is disabled globally but has camera enabled, or adapt those behaviors to consider the camera level as well, or perhaps it is good as is.

[blakeblackshear]

Might be a good idea to add some unit tests for the additional config parsing to make sure it handles things the way we expect.

[NickM-27]

Might be a good idea to add some unit tests for the additional config parsing to make sure it handles things the way we expect.

Yeah good idea, I think the two I added should cover the cases but let me know if I missed any 👍