Replaced fuzzy ints with a well defined enum
Moved API related cell interfaces to a new subpackage
Introduced a new client helper method to register a cell texture for a storage channel
Added a method to obtain the storage channel for a drive or chest slot
Added a new cell state for cells with stored items but neither types nor completely full
Allows addons who register a custom IStorageChannel to use the IStorageCell interface without registering a cell handler. Also adds some helpers (poweredInsert/poweredExtract).
This breaks API!
yueh