subtree(users/wpcarro): docking briefcase at '24f5a642'

git-subtree-dir: users/wpcarro
git-subtree-mainline: 464bbcb15c
git-subtree-split: 24f5a642af
Change-Id: I6105b3762b79126b3488359c95978cadb3efa789

users/wpcarro/third_party/default.nix

@@ -0,0 +1,5 @@
+{ pkgs, briefcase, depot, ... }:
+
+# Exposing these to be available as briefcase.third_party.pkgs for example.
+
+{ inherit pkgs briefcase depot; }