Proposal: Add Eq1 and Ord1 instances in GHC.Generics, and synchronize with Data.Functor.* types

Eq1 and Ord1 are two more useful classes to implement in GHC.Generics, and would be useful to derive Eq1 and Ord1 generically. Note that we can currently use transformers-compat to derive these. Moreover, most of the GHC.Generics types are equivalent to types in the Data.Functor.* modules. Would it be a good idea for them to have the same instances? Concretely, the current differences are: - GHC.Generics is missing Eq1, Ord1, Show1, Read1 instances - Data.Functor.* is missing Semigroup and Monoid instances (that my previous proposal would add to GHC.Generics) Li-yao