Iron Barrels

Update to 1.15.2

Fix crash with comparators

Recipe loading is now dependent on the relevant "c" tags existing for Copper and Silver barrels & kits

Recipes are in groups to make using the vanilla recipe book cleaner

Re-done the Barrel GUI to use a scrolling item list. There are 3 visible rows.

Updated included dependencies:

LibGUI 1.3.3-beta.7 -> 1.5.1
ML3API 1.3.1 -> 1.3.3
LibCD 2.0.1+1.15 -> 2.2.3-ironbarrels2+1.15.2

This version uses an unofficial version of LibCD in order to fix a bug in the current version. I will release a new version with the official fix later.

Compatibility with 1.16 snapshots is untested.