Merge pull request #977 from RoanKanninga/master

edited the Validator script for GIDS
Added ChartVisualizationService framework
Merge pull request #979 from erwinwinder/master

Added ChartVisualizationService framework
Allow more iterations to resolve xref/mref
Merge pull request #980 from erwinwinder/master

Allow more iterations to resolve xref/mref
Replaced ol QueryRule with new QueryRule in DataExplorer and BiobankConnect
Merge pull request #984 from erwinwinder/master

Replaced ol QueryRule with new QueryRule in DataExplorer and BiobankConn...
small bug fixes + added scrollable modal