Import Data.Generic.Rep from prelude

[kl0tl]

Description of the change
We merged generics-rep into prelude and renamed the Data.Generic.Rep.* modules to Data.*.Generic in purescript/purescript-prelude#235.

Should we mention the removal of generics-rep from the dependencies in the changelog?

[kl0tl]

The build fails because some packages depend on generics-rep in the package set but it compiles with the rc5 branch of my fork and purescript-contrib/purescript-profunctor-lenses#123:

let upstream =
      https://raw.githubusercontent.com/kl0tl/package-sets/rc5/src/packages.dhall

in  upstream
  with profunctor-lenses =
        upstream.profunctor-lenses
      ⫽ { repo = "https://github.com/kl0tl/purescript-profunctor-lenses.git"
        , version = "fix-Data.Lens.Zoom.zoom"
        }

[thomashoneyman]

We should mention the change, as part of the 0.14 updates, but that can be done when we walk through to add release notes for all these libraries.