Custom Machinery 1.21.1-0.10.16

Additions :

• Add option to show background in gui editor.
• Remove Cloth config dependency in favor of NeoForge config.
• Removed renderType method in KubeJS block builder, now that the render type can be set in block models.
• Machine now drops stored xp when broken.
• Add keep_inventory appearance property, default to false, if set to true the machine's inventory (items/fluids/energy...) will be stored inside the item and restored when placed again.
  If set to false (default), items and xp will be dropped on ground and other contents will be voided (same as before).
• Add I/O side config to redstone component.

BugFix :

• Fix popup dragging stops if the cursor goes outside the popup.