This pull adds support for geographic queries using spatial filters.
Spatial filter can be used to filter by spatial bounds
:ivar str dimension: Dimension to filter on.
:ivar str bound_type: Spatial bound type: ['rectangle','radius','polygon'].
:param `**kwargs`: addition arguments required for the selected bound type:
'rectange': 'minCoords' and 'maxCoords'
'radius': 'coords' and 'radius'
'polygon': 'abscissa' and 'ordinate'
"""
This pull adds support for geographic queries using spatial filters.
see: https://druid.apache.org/docs//0.15.1-incubating/development/geo.html