Add stash list command

bin/git-laststash

+#!/usr/bin/env bash
+
+# From https://stackoverflow.com/a/38826108/2427624
+
+git stash list --pretty=format:"%C(red)%h%C(reset) - %C(dim yellow)(%C(bold magenta)%gd%C(dim yellow))%C(reset) %<(70,trunc)%s %C(green)(%cr) %C(bold blue)<%an>%C(reset)"