OZP-807: Useful Backend Legacy service for translating OWF8 objects for OWF7 javascript.

1. Abstracted EDashboardLayoutList into the DashboardServiceModel.
2. Fixed some bugs in translateToOwf8Dashboard method.
3. Fixed bug in the OWF 7 date format where am/pm was ignored.
4. Added assertions for OWF 7 dashboard to OWF 8 dashboard test.