Backport `bifold` in `Bifoldable` typeclass to scala_2.11#3242

Merged

rossabaker merged 2 commits intotypelevel:scala_2.11from gagandeepkalra:backport/bifoldable/bifold

Feb 4, 2020

+32-2

Commits on Jan 9, 2020

backported typelevel#3088 (adding bifold to Bifoldable typeclass) to scala_2.11
gagandeepkalra
committed

Commits on Jan 10, 2020

addressed review feedback regarding name change
gagandeepkalra
committed