Show more graceful screens for "add network" flow

- use TableLayout instead of RelativeLayout for
  wifi configuration to align each columns appropriately.
- split @id/type field into two fields in SetupWizard

Bug: 3403168
Change-Id: I37f2c60ce1b0473af7d20dee1775e9893d2abade
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 7f23ce0..7879d0c 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -315,6 +315,7 @@
         <activity android:name="DateTimeSettingsSetupWizard"
                   android:label="@string/date_and_time"
                   android:theme="@android:style/Theme.Holo.NoActionBar"
+                  android:windowBackground="@drawable/setups_bg_default"
                   android:screenOrientation="behind">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />