Excludes this field from the field comparison API, MQeFieldsEquals. Each field has a
hide bit (initially '0') associated with it. This API allows
the application to set or clear the hide bit. The hide bit is
considered part of the value of a field, it is cleared if a field with the
same name is put into the MQeFields object. The value of the hide bit
is exported when the MQeFields object is serialized with MQeFieldsDump, so hidden fields remain
hidden when MQeFields objects are transported to a different WebSphere MQ
Everyplace system.