Feature request: allow mocking interfaces that inherit from other interfaces

[m-celikba]

The following does not work:

[assembly: Mock<IItfDerived>]

public interface IItfBase
{
    void Method1();
}

public interface IItfDerived : IItfBase
{
    void Method2();
}

and produces this compile error:
error CS0535: 'ItfDerivedMock.@class' does not implement interface member 'IItfBase.Method1()'

Looking at the tests, it seems this is not tested so I guess it is not supported ?
Please consider adding support for this scenario.