Description: This object stores information of all shelves that were added
to the UMC system when umc1TrapInventoryShelfTableChange trap
was emitted by the agent with umc1InventoryShelfTableChangeHistoryIndex
sequence number. 

The byte-format structure of this object is as follows:
        octet[0]        Version number of the octet representation. The version number 
                    for the initial implementation will be 0x01.

        For version number 0x01 the remaining octets will be defined as follows :
        octet[1]    Total number of records in the varbind, where each record consists 
                    of a length octet(length of the record), a terminal identifier octet, 
                                a shelf identifier octet and a shelf-type octet.
        --- Record #1
        octet[2]        Length of the first record.
        octet[3]        Terminal Identifier of the first record.
        octet[4]        Shelf identifier of the first record.
        octet[5]        Shelf-type of the first record.
        ........