Add distance to spatial rules

[barbeau]

Summary:

We currently have spatial rules like:

• E028 - Vehicle position outside agency coverage area
• E029 - Vehicle position far from trip shape

It would be nice if we could include the distance of the position to the coverage area or trip shape in the error message so instances could be sorted to prioritize the ones farthest from the area or shape.

Steps to reproduce:

Trigger a E028 or E029 error message

Expected behavior:

The message should include a distance to the area or shape

Observed behavior:

No distance is included