Structure datatypes

The following structure datatypes are now documented in this book

MQCFH
See MQCFH - PCF header.
MQCFIL
See MQCFIL - Integer list parameter.
MQEPH
See MQEPH - Embedded PCF header.
MQCFGR
See MQCFGR - Group parameter.
MQCFIN64
See MQCFIN64 - 64-bit integer parameter.
MQCFIL64
See MQCFIL64 - 64-bit integer list parameter.