Function getFeatureCollection

getFeatureCollection(features): GeoJSON.FeatureCollection
JMap.Geometry.getFeatureCollection

Returns a feature collection.
Parameters
- features: Feature<Geometry, GeoJsonProperties>[] | JPoint[] | JLocation[]
  could be a collection of turf features, JMap locations, or JMap points
Returns GeoJSON.FeatureCollection
Example
```
// returns the feature collection for the 2 points
const distance = JMap.Geometry.getFeatureCollection([ { x: 10, y: 20 }, { x: 30, y: 30 } ])
```