#328 broker display omits a lot of items

- [x] tier 0 items do not display - [x] 2h item types do not work - [x] Max charges when you buy an item with a charge count - [x] Additional missing items seen on broker: Gust of insight... min_skill and max_skill is a range of 0-6 from client->server, all the way back to classic. Classic UI has it, obselete is 0, 6 goes to unusable (red) for the player. The items skill items to not match this range, they are actual skill values. - [x] 1h item types show both 1h/2h weapons (now 1h and 2h are separated)