Add a suggestion: showing new device features

- New suggestion activity
- Removed useless api SuggestionFeatureProvider.isPresent().

- Also updated support activity search indexing icon and summary

Change-Id: Ib52cf26a985f57bf0aac918606b10f75bd024639
Fix: 62034077
Fix: 62196070
Test: make RunSettingsRoboTests

src/com/android/settings/dashboard/suggestions/SuggestionsChecks.java

@@ -79,13 +79,10 @@ public class SuggestionsChecks {
             return isCameraLiftTriggerEnabled();
         }
 
-        SuggestionFeatureProvider provider =
+        final SuggestionFeatureProvider provider =
                 FeatureFactory.getFactory(mContext).getSuggestionFeatureProvider(mContext);
-        if (provider != null && provider.isPresent(component)) {
-            return provider.isSuggestionCompleted(mContext, component);
-        }
 
-        return false;
+        return provider.isSuggestionCompleted(mContext, component);
     }
 
     private boolean isDeviceSecured() {