BIND 10 #1976: use meta-or-container-of data source in b10-auth

[BIND 10 Development]

#1976: use meta-or-container-of data source in b10-auth
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            Reporter:  jinmei        |                        Owner:
                Type:  task          |                       Status:  new
            Priority:  medium        |                    Milestone:  Next-
           Component:  b10-auth      |  Sprint-Proposed
           Sensitive:  0             |                     Keywords:
         Sub-Project:  DNS           |              Defect Severity:  N/A
Estimated Difficulty:  0             |  Feature Depending on Ticket:
         Total Hours:  0             |          Add Hours to Ticket:  0
                                     |                    Internal?:  0
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 In this task we have b10-auth instantiate and use the concept
 implemented in #1975.  It will (hopefully) replace the current
 in-memory specific setup.

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Ticket URL: <http://bind10.isc.org/ticket/1976>
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