Introduce FileEncryptionPreferenceController

- Create new FileEncryptionPreferenceController
 - Create controller inside the DashboardFragment
 - Port logic from DevelopmentSettings into the controller

Bug: 34203528
Test: make RunSettingsRoboTests -j40
Change-Id: I19f68fa719442bad03fee7ab3939510095257dee

src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java

@@ -244,7 +244,7 @@ public class DevelopmentSettingsDashboardFragment extends RestrictedDashboardFra
         controllers.add(new BluetoothSnoopLogPreferenceController(context));
         controllers.add(new OemUnlockPreferenceController(context, activity, fragment));
         // running services
-        // convert to file encryption
+        controllers.add(new FileEncryptionPreferenceController(context));
         controllers.add(new PictureColorModePreferenceController(context, lifecycle));
         // webview implementation
         controllers.add(new CoolColorTemperaturePreferenceController(context));