The Coordinates interface represents the position and altitude
the device on Earth, as well as the accuracy with which these
are calculated.

web.geolocation interfaces.

The Geolocation interface represents an object able to programmatically
the position of the device. It gives Web content access to the
of the device. This allows a Web site or app to offer customized
based on the user's location.

NavigatorGeolocation contains a creation method allowing objects
it to obtain a `web.geolocation.Geolocation` instance.

The Position interface represents the position of the concerned
at a given time. The position, represented by a `web.geolocation.Coordinates`
comprehends the 2D position of the device, on a spheroid representing
Earth, but also its altitude and its speed.

The PositionError interface represents the reason of an error
when using the geolocating device.

The PositionOptions interface describes an object containing
properties to pass as a parameter of `Geolocation.getCurrentPosition()`
`Geolocation.watchPosition()`.