title: How to access another FirebaseUser`s properties?
body: <p>Well, I can access current <code>FirebaseUser</code> object as <code>FirebaseAuth.getInstance().getCurrentUser()</code> and then I can call <code>getPhotoUrl()</code> or <code>getDisplayName()</code> methods.
  The question is given user UUID, how can access another user's object and call these methods?</p>
  
  <p>PS: on android</p>