Adapt hashdb, keywordsearch config panels for wide use

Made these core configuration mechanisms uniform in support for wider use.
The simple and advanced config panels are now all public with public load/store methods.
Fix DataResultViewerTable lazy node creation bugs
Merge pull request #389 from rcordovano/case_wizard

Adapt hashdb, keywordsearch config panels for wider use
Merge pull request #390 from rcordovano/lazy_props

Fix DataResultViewerTable lazy node creation bugs