Feature: Implicit Conversions/Cast on ValueContainer

[pksorensen]

Would be nice to have implicit casts / conversions for ValueContainer, simplifying constructing a ValueContainer like below:

---

        public override ValueTask<ValueContainer> ExecuteFunction(params ValueContainer[] parameters)
        {
            var relationship = parameters[0]?.ToString();

            return new ValueTask<ValueContainer>(new ValueContainer(relationship));

        }

with implicit conversions between simple types and ValueContainer one might do this instead

        public override ValueTask<ValueContainer> ExecuteFunction(params ValueContainer[] parameters)
        {
            var relationship = parameters[0]?.ToString();

            return new ValueTask<ValueContainer>(relationship);

        }