Add window for login information.
Add message instead of messagebox.
Add session management service with check if user exists in database and login from wpf.
Include Salt in password hash generation.
Add session id check with message inspection.
Merge branch 'login'

Conflicts:
	src/Billapong.MapEditor/ViewModels/MapSelectionViewModel.cs
Refactore binding properties to new (nicer) way.
Make PasswordBox for password textbox.