Log using new pmloglib API

:Release Notes:
Changed to use new key-value pmloglib API.

:Detailed Notes:
To use PmLogLib key-value logging, user application can
be linked with PmLogLib library. This will enable logging
with PmLogLib automatically.

:Testing Performed:
Unit-tests. MiniBAT.

:QA Notes:

:Issues Addressed:
[BHV-8] pbnjson: Refactor logging to use pmloglib

Open-webOS-DCO-1.0-Signed-off-by: Alexandr Smoktal <alexandr.smoktal@lge.com>

Change-Id: Ie3a762963aa6cbe0be4731e7656736afaea7d4df
Reviewed-on: https://g2g.palm.com/4741
Reviewed-by: DCO Verification
Reviewed-by: Alexandr Smoktal <alexandr.smoktal@lge.com>
Tested-by: Alexandr Smoktal <alexandr.smoktal@lge.com>
Reviewed-by: Anatolii Sakhnik <anatolii.sakhnik@lge.com>