Feature Request: ActLike<BaseClass>

[meikeric]

Add ability to pass a Base Class Type to ActLike and have it generate that object.
Reasoning: Dynamic Entity Framework Core.

Sample Unit Test Usage for Entity Framework:

            dynamic testObject = new ExpandoObject();

            //dynamic testObjectContext = testObject.ActLike<DbContext>();
            dynamic testObjectContext = Impromptu.ActLike<DbContext>(testObject);

            Type testObjectContextType = testObjectContext.GetType();

            Assert.True(testObjectContextType.IsSubclassOf(typeof(DbContext)));