Add the `Geos::Tools.bool_to_int` helper method.
Allow `Geos::Geometry#delaunay_triangulation` to accept `tolerance` as an option.
Add methods similar to PostGIS's ST_DumpPoints function.

This method dumps out the points of a geometry into an Array. The Array
might be multi-dimensional, such as in the case of Polygons for the
exterior and interior rings or for collections like MultiLineStrings.
Add methods for getting maximum and minimum x, y and z values.
Add a snap_to_grid method on everything.

Based on the PostGIS ST_SnapToGrid function.
Add geometry transformations, like rotate, scale, etc.

Based on the PostGIS transformation functions.
Add a Geos::LineString#line_interpolate_point method.

Based on the PostGIS ST_Line_Interpolate_Point function.
Add the `Geom::Geometry#voronoi_diagram` method.