The Applicative type-class is a Functor that also adds the
capability of lifting a value in the context.
Applicative Programming with Effects.
The purpose of this type-class is to support the data-types in the
Monix library and it is considered a shim for a lawful type-class
to be supplied by libraries such as Cats or Scalaz or equivalent.
To implement it in instances, inherit from ApplicativeClass.
Credit should be given where it is due. The type-class encoding has
been copied from the Scado project and
Scalaz 8 and the type has
been extracted from Cats.