make resourceresolver constructor package private

Summary: Now that ResourceResolver is only constructed within ComponentContext, we can make its constructor package private to prevent other Components from accessing it in another way.

Reviewed By: astreet

Differential Revision: D16587477

fbshipit-source-id: 4c18a52e3e6e3594f2748e867a1f32f1939c2de9

litho-core/src/main/java/com/facebook/litho/ResourceResolver.java

@@ -34,7 +34,7 @@ public class ResourceResolver {
   private final Resources.Theme mTheme;
   private final ResourceCache mResourceCache;
 
-  public ResourceResolver(ComponentContext context) {
+  ResourceResolver(ComponentContext context) {
     mResources = context.getAndroidContext().getResources();
     mTheme = context.getAndroidContext().getTheme();
     mResourceCache = context.getResourceCache();