Test Docs for Int, HashMap, Json and Log Tests

:Release Notes:
 Test Docs for Core Module of DB8.

:Detailed Notes:
 - AtomicInt Test:
   Tests functionality of integer variable and
   various ralational operations using overloaded functions.
   Files: MojAtomicIntTest.cpp and MojAtomicIntTest.h

 - HashMap Test:
   Tests functionality of storing key-value pair using Hashing
   algorithm and various operations on map.
   Files: MojHashMapTest.cpp and MojHashMapTest.h

 - Json Test:
   Tests data handling in Json object.
   Files: MojJsonTest.cpp and MojJsonTest.h

 - Log Test:
   Tests different logging functionality and
   support for log levels and appenders.
   Files: MojLogTest.cpp and MojLogTest.h

:Testing Performed:
 Tested in Desktop
 Note:  Only comments changed.  No logic changes

:QA Notes:

:Issues Addressed:

Open-webOS-DCO-1.0-Signed-off-by: shrinivas.kulkarni <shrinivas.kulkarni@lge.com>

Change-Id: Ia3dadcfd336c596ce0aae74f55f910c913a46d34
Reviewed-on: https://g2g.palm.com/2886
Reviewed-by: Build Verification
Reviewed-by: Roger Stringer <roger.stringer@lge.com>
Tested-by: Roger Stringer <roger.stringer@lge.com>