[Tizen] Application Security

Implementation of abstraction of security for installation process and EP.
For tizen installer will call security-manager API set correct
privleges for apps.

BUG=XWALK-1731

[Verification]
  rpm -i security-manager-0.1.0-2.2.armv7l.rpm \
         libcynara-admin-0.2.2-10.1.armv7l.rpm \
         cynara-0.2.2-10.1.armv7l.rpm \
         libsecurity-manager-client-0.1.0-2.2.armv7l.rpm
  systemctl start cynara
  systemctl start security-manager
  systemctl enable security-manager
  (install and run app)
I'm curious why above member are declared as protected not private? I do not see any class inherit from this class.