Example for "quick plot" functions

[willGraham01]

As mentioned on Zulip, we should collate all of the "convenience wrapper" functions (introduced in #282, plus those introduced going forward) into a single example to demonstrate what's on offer.

• plot_trajectory (Plotting wrappers: Head Trajectory #394) might want to come out of the current example it is in if we do this.
• plot_occupancy (Plotting Wrappers: Occupancy Histogram #403) will need a new example, but it fits thematically alongside plot_trajectory.

[niksirbi]

In theory, this could be combined with #415 , i.e. it could form the same example. The rationale is that it’s useful to visualise trajectories and occupancy heatmaps in the context of quantifying time spent in various regions of interest.

I could work on writing that example next week, alongside #317 . I’m offering for three reasons:

1. Sometimes having a different person (who didn’t develop the feature) create the examples can be beneficial, as they bring a fresh, “outside” perspective.
2. It might help free up your limited time to focus on building new features (e.g. the napari widget for drawing shapes).
3. I personally rather enjoy writing examples.

Let me know.

[willGraham01]

Happy to hand this over to you if you'd like it. As you say, it'll also be a good check that we're implementing the features in a sensible / intuitive way!