further continuity-aware node consolidation #199
Description
In some cases, our routines result in two nodes that are fairly close to each other. Like here.
This is a result of Voronoi skeleton but there are possibly other situations when something like this happens. I was wondering if there should be one more step that consolidates these nodes but not in the way our (or any) consolidate_nodes function works but in a continutity-aware way. Meaning that in the case above, the new node gets joined onto the node that lies on C, so we don't alter it.
It should not be complicated to implement but, you know, it will have consequences...