Update Stepfilter defaults

Author: SougandhS

debug/org.eclipse.debug.core/core/org/eclipse/debug/internal/core/DebugPreferenceInitializer.java

@@ -26,7 +26,7 @@ public class DebugPreferenceInitializer extends AbstractPreferenceInitializer {
 	@Override
 	public void initializeDefaultPreferences() {
 		// Step filter preferences
-		Preferences.setDefaultBoolean(DebugPlugin.getUniqueIdentifier(), StepFilterManager.PREF_USE_STEP_FILTERS, false);
+		Preferences.setDefaultBoolean(DebugPlugin.getUniqueIdentifier(), StepFilterManager.PREF_USE_STEP_FILTERS, true);
 		//launch configurations preferences
 		Preferences.setDefaultBoolean(DebugPlugin.getUniqueIdentifier(), DebugPlugin.PREF_DELETE_CONFIGS_ON_PROJECT_DELETE, false);
 		Preferences.setDefaultBoolean(DebugPlugin.getUniqueIdentifier(), IInternalDebugCoreConstants.PREF_ENABLE_STATUS_HANDLERS, true);