Add magic intent to force account creation

* Add entry point via com.android.email.CREATE_ACCOUNT
* Enable when in monkey mode only
* Walks through setup screens as if auto-populated and as if
  connection checking always succeeds.
* Refactored some common code in AccountSetupBasicsFragment
* Removed obsolete commentary about auto-population of EAS accts
* Also fix minor typo in FLOW_MODE_ACCOUNT_MANAGER_POP_IMAP

Bug: 2735784
Change-Id: Ie7363836cd267673e963e60ae8bc32cab422576e
1 file changed