refactor ArchiveLookupHandler to delegate to a generic ECardHandler fallback
refactor AnonCreationHandler: inline privatized method
feat ArchiveLookupHandler: also handlers duplicate with insert from archive
feat Training mode: define a copy/archive option for duplicate reading in training mode
feat SIReaderConfigPanel: provide an option in SIReader config for copy/insert duplicate in training mode
feat ECardTrainingMode: fallback to anon creation after duplicate archive lookup
fix: correct label for duplicate copy/archive option in config panel
Merge pull request #38 from sdenier/feat-duplicate-copy-or-archive

Feature: option to copy entry or lookup archive when reading duplicate in training mode