Add basic data access interface
Add IUsersDataContext
Add IUsersDataFacade
Add IUsersBusinessLogic
Add DataContext project with EF6 and DataContextBase class
Add UsersDataContext and UsersDbContext
Add DataFacade project
Add BusinessLogic project
Add CompositionRoot project
Add Disposer class
Fix interfaces and add business logic and data facade classes
Add composer and register users module