Steven Hiscocks

I've rebased this onto `main`, done a minor restructure, added some flake8 fixes, a bug fix for track ordering, and added an animated example based on the one referenced in...

Added a few more changes to add some consistency with changes that had occurred on `main` branch. Once merged, I'll raise an issue in regards of how measurement history is...

@SohSalari Would it be possible to provide an example as part of the documentation. Maybe just adapting one of the existing [tutorials](https://github.com/dstl/Stone-Soup/tree/master/docs/tutorials) or [examples](https://github.com/dstl/Stone-Soup/tree/master/docs/examples), with some soft data? If you...

@jogehl Would it be possible to provide an example of ASD in action as part of the documentation. Maybe just adapting one of the existing [tutorials](https://github.com/dstl/Stone-Soup/tree/master/docs/tutorials) or [examples](https://github.com/dstl/Stone-Soup/tree/master/docs/examples), but putting...

Apologies on the delay reviewing and merging this @jogehl. I've opened #734 with minor changes and updating code to work with latest version of the main code base.

I think it would be good to replace `StatePrediction` with `Track`, as then you'll have access to the entire track history, and track meta data. I can imagine use cases...

I'm not sure. Maybe we could have something like a track management element, that has merging, but maybe also brings in existing deletion and initiation as part of it? I'm...

I'm not sure why, but when running on CircleCI, no tracks are produced. But it works fine locally. I'll rebase on `main` to see if that resolves it.

So the issue was in certain configurations, the prune threshold was slightly too high. I recreated this on another Linux system running Python 3.10. I suspect this is caused by...

@DaveKirkland Instead of merge, could you just rebase onto `master` please. If you do an interactive rebase, you can drop your merge commit. Don't worry about tests which fail that...