Rewire BiometricEnrollActivity to setup pages

When running in setup flow:
- If fingerprint enrollment is desired, go to
  SetupFingerprintEnrollIntroduction
- Makes sure WizardManagerHelper.copyWizardManagerExtras is called
  to propagate the extras from the incoming intent, propagating
  extras like whether we are in initial / deferred setup flow, theme,
  etc.
- Forward the result code in BiometricEnrollActivity using
  FLAG_ACTIVITY_FORWARD_RESULT

Bug: 120797018
Test: Manual
Change-Id: Ibc0ecc035141d62339f5f664346ed108570e0905

src/com/android/settings/biometrics/face/FaceEnrollIntroduction.java

@@ -36,6 +36,7 @@ import com.android.settingslib.RestrictedLockUtilsInternal;
 
 import com.google.android.setupcompat.template.FooterBarMixin;
 import com.google.android.setupcompat.template.FooterButton;
+import com.google.android.setupcompat.util.WizardManagerHelper;
 import com.google.android.setupdesign.span.LinkSpan;
 
 public class FaceEnrollIntroduction extends BiometricEnrollIntroduction {
@@ -166,6 +167,7 @@ public class FaceEnrollIntroduction extends BiometricEnrollIntroduction {
             intent.setClass(this, FaceEnrollEnrolling.class);
         }
         intent.putExtra(EXTRA_KEY_REQUIRE_DIVERSITY, mSwitchDiversity.isChecked());
+        WizardManagerHelper.copyWizardManagerExtras(getIntent(), intent);
         return intent;
     }