DataContract.Name is ignored for generic types

[navozenko]

Hi. I found that SoapCore ignores the Name property specified in DataContractAttribute for generic type. Here is an example:

[ServiceContract]
public interface IMyService
{
    [OperationContract]
    MyType<int, string> Test();
}

public class MyService : IMyService
{
    public MyType<int, string> Test() => new();
}

[DataContract(Name = "MyType")]
public class MyType<TKey, TValue>
{
    [DataMember]
    public TKey? Key { get; set; }

    [DataMember]
    public TValue? Value { get; set; }
}

The produced wsdl refers to the auto-generated name "MyTypeOfInt32String" instead of the "MyType" name specified in the DataContract.Name property.

<xs:element name="TestResponse">
  <xs:complexType>
    <xs:sequence>
      <xs:element minOccurs="1" name="TestResult" nillable="true" type="q1:MyTypeOfInt32String"/>
    </xs:sequence>
  </xs:complexType>
</xs:element>

I wrote a small fix, based on the CollectionDataContract.Name processing code.
#1068