explore the data binding mechanism

• It is describe here http://docs.sencha.com/extjs/6.2.0/guides/application_architecture/view_models_data_binding.html
• Have look to the kitchen Sink Components > Data binding
• Example of it use in Event.RowEventData or Event.RowHistoryData
• It should allow to simplify the implementation of the linked ComboBox
• It should allow to simplify the implementation of the Dbui.grid.plugin.RowEditorBase
• ...