Overload `==` and `!=` operators for ValueObject

src/Services/Ordering/Ordering.Domain/SeedWork/ValueObject.cs

@@ -5,7 +5,7 @@ namespace Microsoft.eShopOnContainers.Services.Ordering.Domain.SeedWork
 {
     public abstract class ValueObject
     {
-        protected static bool EqualOperator(ValueObject left, ValueObject right)
+        public static bool operator ==(ValueObject left, ValueObject right)
         {
             if (ReferenceEquals(left, null) ^ ReferenceEquals(right, null))
             {
@@ -14,9 +14,9 @@ namespace Microsoft.eShopOnContainers.Services.Ordering.Domain.SeedWork
             return ReferenceEquals(left, null) || left.Equals(right);
         }
 
-        protected static bool NotEqualOperator(ValueObject left, ValueObject right)
+        public static bool operator !=(ValueObject left, ValueObject right)
         {
-            return !(EqualOperator(left, right));
+            return !(left == right);
         }
 
         protected abstract IEnumerable<object> GetAtomicValues();