* ocamlPackages.eigen: 0.2.0 -> 0.3.3 Diff: https://github.com/owlbarn/eigen/compare/0.2.0...0.3.3 Changelog: https://github.com/owlbarn/eigen/releases/tag/0.3.3 * ocamlPackages.eigen: modernized derivation - Removed with lib; - Changed rev to tag and sha256 to hash