MQIIH_* (IMS(TM) information header structure)

See:

MQIIH_STRUC_ID "IIHb"
MQIIH_STRUC_ID_ARRAY 'I','I','H','b'
MQIIH_VERSION_1 1 X'00000001'
MQIIH_CURRENT_VERSION 1 X'00000001'
MQIIH_LENGTH_1 84 X'00000054'