Upload my 2019 Advent of Code attempts

Well, unexpectedly (perhaps naively so), I only made it to Day 7. I created
these before I stumbled upon the idea of the mono-repository; otherwise, I like
to think I would have more granular commits introducing this work.

advent-of-code/aoc2019.nix

@@ -0,0 +1,8 @@
+with import <nixpkgs> {};
+with python35Packages;
+
+buildPythonPackage {
+  name = "wpcarro";
+  src = ./day_5.py;
+  propagatedBuildInputs = [ pytest numpy ];
+}