Add Private space Delete settings page inside PS settings page

Contains implementation of settings page for Delete private space
controller inside private space settings page.
- On selecting to delete private space displays list of account signed in
to private profile and deletes the private space after authentication.
- Shows a toast message after private space is deleted

- Adds dependency for setupdesgin loading layout to show a loading
  screen while deletion of private space is in progress.

Recording Link : b/318383729
go/ss/4Aq3rmbSGHMHesK.png

Bug: 318383729
Test: atest DeletePrivateSpaceControllerTest

Change-Id: Ia1730915e2469b47823c507f9ef6cd8f63c99baf

src/com/android/settings/core/gateway/SettingsGateway.java

@@ -169,6 +169,8 @@ import com.android.settings.print.PrintJobSettingsFragment;
 import com.android.settings.print.PrintSettingsFragment;
 import com.android.settings.privacy.PrivacyControlsFragment;
 import com.android.settings.privacy.PrivacyDashboardFragment;
+import com.android.settings.privatespace.delete.PrivateSpaceDeleteFragment;
+import com.android.settings.privatespace.delete.PrivateSpaceDeletionProgressFragment;
 import com.android.settings.privatespace.onelock.PrivateSpaceBiometricSettings;
 import com.android.settings.regionalpreferences.RegionalPreferencesEntriesFragment;
 import com.android.settings.safetycenter.MoreSecurityPrivacyFragment;
@@ -271,6 +273,8 @@ public class SettingsGateway {
             CombinedBiometricSettings.class.getName(),
             CombinedBiometricProfileSettings.class.getName(),
             PrivateSpaceBiometricSettings.class.getName(),
+            PrivateSpaceDeleteFragment.class.getName(),
+            PrivateSpaceDeletionProgressFragment.class.getName(),
             SwipeToNotificationSettings.class.getName(),
             DoubleTapPowerSettings.class.getName(),
             DoubleTapScreenSettings.class.getName(),