Rework configuration of installation and run-time paths

Rework configuration of installation and run-time paths

- Don't rely on values defined in Tizen spec
- Define all used paths in top-level CMake
- Use same definitions for installation and run-time paths
- Pass paths definitions from CMake to compiler
- Unify naming, use "dir" instead of mixed "dir" and "path"
- Use names and descriptions similar to those in autotools
- Handle all paths in single source file - PathConfig.cpp
- Fix default statePath (/var/lib/cynara => /var/cynara)
- Properly use %{_bindir} and %{_unitdir} in spec
- Fix hard-coded /var/cynara path in cynara-db-migration

Change-Id: Ie28d9291bc396f89214e3555606846c4a9b7bcbc
Signed-off-by: Rafal Krypa <r.krypa@samsung.com>