JEI: Chain Crafts

# Changelog

## 0.3.0

### Added
- **Refined Storage 2 compatibility**: the executor now works from the Refined
  Storage crafting grid. Ingredients are placed through RS's own recipe
  transfer (network first, then player inventory), and crafted items are sent
  back into the network. No hard dependency: the mod loads normally without RS.
  - Shaped recipes keep their layout in the grid.
  - A tag ingredient chosen in the picker is the only one sent to RS;
    otherwise RS uses the alternative it has the most of.
- **Network stock awareness for Refined Storage**: while an RS grid is open,
  the tree counts items stored in the network in addition to the player
  inventory.
- Batched crafting also applies to the RS crafting grid, limited by the stock
  in the network.

### Changed
- Tom's Simple Storage and Refined Storage now share the same batching and
  output-handling code. Tom's behavior is unchanged.

### Known limitations
- Only the RS crafting grid is supported (the plain and portable grids have no
  crafting).
- Items with components (enchantments, custom data...) are not counted in the
  RS network stock.