Add geo_point_2d, geo_shape and objectid as datatypes

[ivbeg]

There are combination of datatypes like geo_point_2d, geo_shape and objectid used in thousands French and EU datasets.
It looks like it's used in Geographic Information Systems (GIS) across Europe and integrated with ArcGIS.

• geo_point_2d is dict with lat and lon keys with latitude and longitude
• geo_shape is a GeoJSON data with type key and geometry key. type key could have values like 'Feature' and geometry include type key and coordinates as array of 2-size arrays of floats.
• objectid - unique id of the record in this dataset (not globally unique)

Consider adding these field names as datatypes