Investigate profunctor-optics related links

[JordanMartinez]

These were some links posted in the FP slack channel for Haskell:

• https://medium.com/@wigahluk/handling-errors-with-profunctor-optics-d34f97b0cc1a
• https://medium.com/@wigahluk/generalizing-functions-with-profunctors-7773a83557b5
• https://medium.com/@wigahluk/another-look-through-optics-ffd253336e9c

[JordanMartinez]

I don't foresee incorporating this ideas into this repo.