The Full/Folded perm mask exists, but we don't have access via llGetObjectPermMask() nor llGetInventoryPermMask().

We've needed access to quickly know if there is content anywhere in the inventory of the same or other prims of the linkset whose perms do not match the perms of the linkset itself.

This has become more important with the advent of llTransferOwnership().

The yet-to-be implemented remote perms function will also need access.