DEVX-657: overriding hashCode for LocalizedStringEntry for set and map usage

Author: ShipilA

commercetools/commercetools-sdk-java-api/src/main/java/com/commercetools/api/models/common/LocalizedStringEntry.java

@@ -42,6 +42,11 @@ public boolean equals(Object o) {
         return false;
     }
 
+    @Override
+    public int hashCode() {
+        return locale.hashCode() + value.hashCode();
+    }
+
     public Locale getLocale() {
         return locale;
     }