feat(data/complex/module): get `smul_comm_class ℝ M E` from the one for `ℂ` (#16513)
feat(data/complex/module): get `smul_comm_class ℝ M E` from the one for `ℂ` (#16513)

This makes it so all the pieces are in places to realize a non-unital `ℂ`-algebra as a non-unital `ℝ`-algebra.



Co-authored-by: Eric Wieser <da64e90baec5d084ce3d8e05f3b022ae6d118ff5@gmail.com>

leanprover-community/mathlib,leanprover-community/mathlib