JEI: Chain Crafts

# Changelog

## 0.2.0

### Added
- **Tom's Simple Storage compatibility**: the executor now works from Tom's
  crafting terminal. Ingredients are pulled straight from the storage network
  and crafted items are sent back into it. No hard dependency: the mod loads
  normally without Tom's.
- **Network stock awareness**: while a Tom's terminal is open, the tree counts
  items stored in the network in addition to the player inventory.
- **Ingredient choice for tag ingredients**: recipes that accept several items
  (e.g. `#c:chests`) show a `#N` indicator in the tree. Clicking it opens a
  picker to choose which item to use. The choice is remembered per recipe and
  applied to every matching slot. Without a choice, an item you already own
  is preferred.
- "Reset prefs" also clears ingredient choices.

### Performance
- **Batched crafting**: the executor performs several crafts per click instead
  of one. Long chains (e.g. 63 gearboxes, ~630 crafts) go from several minutes
  to a few seconds.
  - Crafting table / inventory: batch size is limited by free inventory space.
  - Tom's terminal: batch size is limited by the stock in the network.

### Fixed
- The progress bar and the "done" message no longer overlap the Pin / Clear
  pin buttons.
- Tom's: shift-clicking the output no longer crafts far more than requested
  (e.g. 193 gearboxes instead of 64).
- The executor no longer stalls on a step that looked like it crafted nothing
  (in-flight items in the grid were wrongly counted).