Add SuggestionFeatureProvider interface.

The interface is added so that a vendor can add new suggestions to the
settings app, and customize details for these suggestions.

Test: make RunSettingsRoboTests

BUG: 34219298

Change-Id: I373c63709b1aaf68360aa2561a2ecfc3194e0e2b

src/com/android/settings/overlay/FeatureFactory.java

@@ -21,6 +21,7 @@ import android.text.TextUtils;
 import android.util.Log;
 
 import com.android.settings.R;
+import com.android.settings.dashboard.SuggestionFeatureProvider;
 import com.android.settings.fuelgauge.PowerUsageFeatureProvider;
 
 /**
@@ -60,6 +61,8 @@ public abstract class FeatureFactory {
         return sFactory;
     }
 
+    public abstract SuggestionFeatureProvider getSuggestionFeatureProvider();
+
     public abstract SupportFeatureProvider getSupportFeatureProvider(Context context);
 
     public abstract PowerUsageFeatureProvider getPowerUsageFeatureProvider(Context context);