Move developer options related class to development package

Bug: 34203528
Test: none, purely moving classes around
Change-Id: I3cd1d257f948729fda5c04632e7ce9114c40bd0c
diff --git a/src/com/android/settings/SettingsActivity.java b/src/com/android/settings/SettingsActivity.java
index 73561a6..11190d5 100644
--- a/src/com/android/settings/SettingsActivity.java
+++ b/src/com/android/settings/SettingsActivity.java
@@ -60,6 +60,7 @@
 import com.android.settings.core.instrumentation.SharedPreferencesLogger;
 import com.android.settings.dashboard.DashboardFeatureProvider;
 import com.android.settings.dashboard.DashboardSummary;
+import com.android.settings.development.DevelopmentSettings;
 import com.android.settings.enterprise.EnterprisePrivacySettings;
 import com.android.settings.overlay.FeatureFactory;
 import com.android.settings.search.DynamicIndexableContentMonitor;