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
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 1cd69bc..f2230ca 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -107,11 +107,18 @@
             >
         </activity>
         <!-- Must be exported in order for the AccountManager to launch it -->
+        <!-- Also available for continuous test systems to force account creation -->
         <activity
             android:name=".activity.setup.AccountSetupBasics"
             android:label="@string/account_setup_basics_title"
             android:exported="true"
             >
+            <intent-filter>
+                <action
+                    android:name="com.android.email.CREATE_ACCOUNT" />
+                <category
+                    android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
         </activity>
         <activity
             android:name=".activity.setup.AccountSetupAccountType"