DP-3122 - Change config loading strategy

DP-3122 Fix configuration files

Signed-off-by: Pawel Zwanitaj <pawel.zwanitaj@intel.com>

DP-3122 Add writing to user configuration instead global

Signed-off-by: Pawel Zwanitaj <pawel.zwanitaj@intel.com>

DP-3122 Fix configuration files to default
DP-3115 Add -C / --config flag to agent and admin

Signed-off-by: Pawel Zwanitaj <pawel.zwanitaj@intel.com>