Release version 0.5.9

Release version 0.5.9

- Merge changes Ie0d96e84,I8418a739,Ib5879a39,I29deb31f,Ie8f5b988, ... into tizen
- Remove unused PrivaciesSequence
- Test src/common/log/ module
- Test src/common/exception/ module
- Test src/common/policy/ module
- Add unit test macros prefixing test name with POSITIVE_ or NEGATIVE_
- Add unit test Boost-based binary
- Update language standard to C++17
- Remove unused CynaraException
- Fix missing null checks
- Remove deprecated GTest-based unit tests
- Change privilege mapping error to warning in some cases
- Remove unused util code to enhance line & function coverage

Change-Id: Id41cc0aeed033d4071fd5086f66ba6b90c98b983