Generate JSON MongoDB spatial query

See MongoDB https://docs.mongodb.com/manual/reference/operator/query-geospatial/ for details of spatial queries. This functions generates only: geoIntersects, geoWithin, near or nearSphere.

gc_query(query, type, coords, ...)

Arguments

query	MongoDB query type which must be one of `geoIntersects`, `geoWithin`, `near` or `nearSphere`.
type	geom type which must be a valid GeoJSON type
coords	list of coordinates which matches `type` Or just provide a valid sf with one row as both type and coords.
...	different params.

JSON valid MongoDB query