Code Refactoring

* Moved class DTOBase to Common.DTO namespace
* Moved class DTOParser to DataAccess.DTOParser namespace
* Moved class DTOParserFactory to DataAccess.DTOParser namespace
* Renamed Person class in DataAccess.DTOParser namespace to
PersonDTOParser
->Modified PopulateDTO metho to return DTOBase to reflect DTOParser
abstract class update
->Moved code in PopulateDTO method to PopulateOdrinal method
-> Renamed fields that were missing 'Ordinal' prefix