3367 add facets subquery to product (#146)

src/schema.graphql

@@ -239,6 +239,11 @@ type Copyright {
   products: [Product]
 }
 
+type Facet {
+  attribute: String,
+  values: [String]
+}
+
 type Product {
   id: ID!
   stockid: Int
@@ -261,6 +266,7 @@ type Product {
   wallpaperTypes: [ProductWallpaperType]!
   fields: ProductFields
   orientation: Orientation
+  facets: [Facet]
   """
   Will be single values return in later release
   """