GeoJSONMultiPolygon constructor
Constructs a GeoJSONMultiPolygon from the given coordinates.
The coordinates should contain at least one Polygon, and each Polygon should contain at least two points (the start and end point of a linear ring).
Implementation
GeoJSONMultiPolygon(this.coordinates)
: assert(coordinates.first.first.length >= 2,
'The coordinates MUST be two or more elements');