Ben Talagan Babut

Note : looks like [GEOSGeom_CreateRectangle](https://libgeos.org/doxygen/geos__c_8h.html#a32e4b02d521c69e4e7847e70a4a52727) does exactly the job (GEOS 3.11 needed).

Some update. Using the following definitions in polygon.c : ```c static VALUE cmethod_create_rectangle(VALUE module, VALUE factory, VALUE xmin, VALUE ymin, VALUE xmax, VALUE ymax) { GEOSGeometry* polygon; polygon = GEOSGeom_createRectangle(...