Eq1, Show1 etc. instances for Data.Semigroup.{First,Last}

Motivation

I was surprised by the following problem:

λ> Compose $ Just $ First 1

<interactive>:3:1: error:
    • No instance for (Data.Functor.Classes.Show1 First)
        arising from a use of ‘print’
    • In a stmt of an interactive GHCi command: print it

I expect that once Data.Monoid.{First,Last} are deprecated (#15028 (closed)) people will want to use (Compose Maybe Data.Semigroup.First) or similar constructs. In that case they will need instances for the classes in Data.Functor.Classes.

Proposal

Add Eq1, Ord1, Read1 and Show1 instances for Data.Semigroup.{First,Last}.