Revert "Hide model interfaces from modules which do not use them"

This reverts commit 82e7522ceb2f2e4d1b821338c3609be60ca771bb.
New "Hide model interfaces from modules which do not use them"
[DefaultFocusedItem for IModelDashboardView]

http://www.expandframework.com/forum/8-discussion/4064-defaultfocuseditem-for-imodeldashboardview.html#6921
[Dashboard and Entity Framework support]

http://www.expandframework.com/forum/13-suggestions/4050-dashboard-and-entity-framework/6911.html
 ImportWizard always skips first record

http://www.expandframework.com/forum/6-bugs/4065-importwizard-always-skips-first-record/6916.html
MainForm is not closing when FormCaching

http://www.expandframework.com/forum/8-discussion/3927-caching-forms-in-memory-for-speedup-in-win.html?start=36#6920