Introduced Bolt V1 as an extension of Bolt V1 with point type support.
Added interfaces to expose point with single multi-dimensional
coordinate. These interfaces are now experimental and will most likely
change before the next stable release.

Introduced new types for points instead of a single generic interface
that represents an arbitrary-dimensional point. This makes it cleaner
what kind of points are supported by the database. It also removes the
need for coordinate array creation and removes the `Coordinate`
interface all together.

To assert that both 2D and 3D points can be serialized and deserialized.