granular equality checking when all geoms not equal

[jGaboardi]

During testing, when all geometries are not equal thing break down quickly and can lead to a considerable frustration figuring out the reason¹²³. I propose adding a fallback granular geometry tester in conftest.geom_test() with known edges that derail development & testing.

Footnotes

1. increase tolerance for testing #72 ↩

2. OS differences in results - adjust expected output #74 ↩

3. coordinate count difference in bleeding edge dev CI #75 ↩