Tracker improvements

[YourAverageLink]

What does this PR do?

Adds some extra functionality to the tracker.

• Right-clicking an area marker will check all of its locations
• Users can sphere-track items by marking a location and then marking the item they found there. Once marked, the item will appear as a small icon beside the location it was found at. The tracker will display what sphere of logic a location is in, and mousing over an item on the tracker will show all locations that contained the item.
• Users may now mark hints for a region. Once a hint is added, it will appear in that region's marker tooltip, as well as the tooltip of its parent province, if applicable.

How do you test this changes?

I have marked various items and locations to make sure that the sphere tracking looks reasonably correct, but more testing would always be appreciated.

Notes

At some point, we should probably make sphere tracking optional, perhaps with a popup Fi dialog that also explains the feature.

[gymnast86]

This all looks good to me. If you could also make it so that hovering over the dungeon abbreviations shows the full dungeon name on the lower text which also shows the item names, I think that would be a good addition.

Addressed by latest commit