Support spaces in WKT geometry

[andreweland]

We currently support importing geometry from WKT, eg:

diagonal-b6/python/diagonal_b6/b6_test.py

Line 185 in 593f852

def test_search_within_wkt_polygon(self):

however, so systems don't put a space between the geometry types and points, and we need the space. Presumably, this is became the geometry originally came from postgis, and so it's actual EWKT: http://postgis.net/docs/ST_AsEWKT.html

Reported by @gacafe