Add better debug logs to libprivilege-control

Add better debug logs to libprivilege-control

[Issue#]        SSDWSSP-406
[Feature]       Adds debug logs which log additional useful informations in libprivilege-control. Create additional defines for SECURE_SLOG*
                logs to allow disabling specific types of SECURE logs.
[Cause]         Many functions in libprivilege-control didn't log useful information - input parameters, files used or switch branches taken.
[Solution]      Add macros which log such information. Additional defines wrapping SECURE_SLOG* log macros are now defined as SECURE_C_LOG*.
[Verification]  Run libprivilege-control-test from security-tests package and check using dlogutil whether functions log their input
                parameters, files used and switch branches taken. Make sure to enable definition DLOG_DEBUG_ENABLED in CMakeLists.txt
                before building the package.

Change-Id: Ifec47d04b7a5aef806caab85fe3709e36aae8afe