BIND 10 #1658: log when adding new configuring new logging

[BIND 10 Development]

#1658: log when adding new configuring new logging
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            Reporter:  jreed    |                        Owner:
                Type:  defect   |                       Status:  new
            Priority:  minor    |                    Milestone:  New Tasks
           Component:  logging  |                     Keywords:
           Sensitive:  0        |              Defect Severity:  N/A
         Sub-Project:  Core     |  Feature Depending on Ticket:
Estimated Difficulty:  0        |          Add Hours to Ticket:  0
         Total Hours:  0        |                    Internal?:  0
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 When adding or changing to a new logging configuration (loggers, output),
 then log about it to that new output -- that is a single line to introduce
 it.

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Ticket URL: <http://bind10.isc.org/ticket/1658>
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BIND 10 Development