Aether_254

Makes Create’s Item Vault width and length limits fully configurable without changing Vault Capability.

Makes Create Fly’s Item Vault width and length limits fully configurable without changing Vault Capability.

Changes the Create Fly packager so complete packages can be packed as items inside new packages, enabling recursive package nesting without merging their contents.

Allows the Create Fly packager to produce a package with empty contents when its target is air, is not a container, or is an empty container.