SecureADODB and DataTableADODB backend

Created by: pchemguy

Incorporate SecureADODB and create DataTableADODB backend.

DataTableADODB backend has been implemented (commit https://github.com/pchemguy/ContactEditor/commit/1ed8289e00d7edbd3c11d1b6db64c7b354288fad) using plain ADODB at this time.