Update to GeoInterface 1.0 #288
Description
The update to GeoInterface 1.0 removes the AbstractMultipolygon type and switches the whole system to traits.
Therefore, we would need to redo our rasterization functions before we can upgrade to GeoInterface 1.0.
We would need to replace the dispatch on AbstractMultiPolygon by a dispatch on the related Traits for the rasterizepoly function.