fill distance to polygons - TBD

[pedro-andrade-inpe]

Implement a new strategy to distance to polygons that consider the distance to the closest part of the polygon, instead of to its centroid.

[avancinirodrigo]

@pedro-andrade-inpe
could it be a parameter on distance operation in fill, e.g. centroid = true?

[pedro-andrade-inpe]

Yes, but we need to check if this could not have a bad interpretation in other strategies. Please check that.