More live-bar tokens — mail, currency, kills, per-hour, and a last for everything

Haul's movable bars and templates can show a handful of values today, but a lot of what Haul tracks isn't available to put on a bar yet. This fills that in so you can display any of your session data: - Mail gold, currencies, and kills as their own tokens. - A "last collected" value for every category, plus one universal "last" that always shows the most recent thing you picked up — whatever it was (a fish, a coin, a currency, a kill). - Per-hour rates for everything (XP per hour, rep per hour, and so on), not just gold per hour. Build your own at-a-glance readout of exactly the numbers you care about.