Initial code

Added the interface and provider class and methods skeleton
Added the entities

Adding entities and the relationship for User, UserClient and
UserSession
TestConsoleApp

Added the TestConsoleApp to test the entities
Refactoring
refactoring

Moved Entities to DAL
Register Test

Register Test
register tests

more tests
Merge pull request #1 from FaqirAamir/master

Entity Definitions and Initial Tests