#2080 delegated flag doesn't support GETBULK

[John Fisher]

Use of the delegated flag as described here:

http://www.net-snmp.org/dev/agent/delayed__instance_8c-example.html

does not work with GETBULK.

A workaround is to handle GETBULK as for GET and GETNEXT, then make a call to netsnmp_bulk_to_next_fix_requests.

Versions: 5.1 to 5.5 at least, but probably earlier as well
OS: MV linux, but not suspected to be OS dependent.
Reproduce: run the delayed instance example, then use snmpbulkwalk
Reference: user mailing list September 23, 2009, subject "delegated and getbulk", comment from Wes Hardaker