Switch OMI ViewApp users

To change the user signed into an OMI ViewApp:

1. The current user signs out from the ViewApp.

   This action logs the user out of the ViewApp. However, the ViewApp reloads under the context of the logged-in Windows user, and is now running in read-only mode. The TitleBarApp in the ViewApp does not show any user information.

2. A new user now signs into the ViewApp. The user uses their AVEVA login credentials to sign in.

   The new user is authenticated, and a message is logged in AVEVA Connect for this user.

3. The OMI ViewApp reloads, based on the security mode in the associated galaxy.

   The TitleBarApp in the ViewApp now shows the new user as the signed-in user.