Created Obligation Handler module
Created PEP module
Renamed package
Added main PEP interface method
Added main PAP interface methods
Created PDP module
Added main PDP interface method
Added access control evaluation to PDP.
Package renamed
Implemented logging action
Changed event fields
Imported Obligation Handler classes from DC module
Removed HERAS dependency (now only in PDP)
Eclipse project files clean up
Added access control and converter funstions tests.
Removed common initializer