Update server settings to current look

* For each of incoming, outgoing, exchange fragment, create a "settings
  mode" which slightly alters the layout for use in AccountSettingsXL.
  * Build a settings mode wrapper layout around the basic fragment
  * Add new constructor to set "settings mode" and select layout
  * Add wiring for cancel/next buttons in the fragment
* AccountSettingsXL configures each fragment in its settings mode
* Remove old actionbar "Next" options (no longer needed)

TODO: Pixel perfect adjustments, colors, fonts, etc.

Bug: 3188951
Change-Id: Iba26281b214333db301dd40d6c016b6c5a932c2d
1 file changed