Change Details

- Add top banner to Save Changes screen in editor flow for IP and Temp account users.

- Call WMFAuthenticationManager's `user(siteURL: URL)` method. Pass in the article URL that the user is editing as a parameter. This will return a WMFCurrentUser value with an authState property of ip, temporary or permanent. - If authState property from previous point is `ip` or `temporary`, add top banner to Save Changes screen in editor flow. Create and push to new screen upon tap of "Read more".

- ACall WMFAuthenticationManager's `user(siteURL: URL)` method. Pass in the article URL that the user is editing as a parameter. This will return a WMFCurrentUser value with an authState property of ip, temporary or permanent. - If authState property from previous point is `ip` or `temporary`, add top banner to Save Changes screen in editor flow for IP. Create and Temp account users. push to new screen upon tap of "Read more".