Generically instance

Reminder to add an instance for `Generically` (base 4.17) by copying the default definitions 

```haskell
instance (Generic a, GBinaryPut (Rep a), GBinaryGet (Rep a)) => Binary (Generically a) where
  put :: Generically a -> Put
  put (Generically a) = gput (from a)

  get :: Get (Generically a)
  get = Generically . to <$> gget
```