Fixes ShapeResult Copy()

[jtkech]

Currently we have

public ShapeResult Copy<TModel>(string shapeType, TModel model) where TModel : class
{
    return Dynamic(shapeType, ctx => ctx.ShapeFactory.CreateAsync(shapeType, model));
}

Which always fails here

public ShapeResult Dynamic(string shapeType, Func<dynamic, Task> initializeAsync)
{
    return Factory(shapeType,
        async ctx =>
        {
            dynamic shape = await ctx.ShapeFactory.CreateAsync(shapeType);
            await initializeAsync(shape); <= ALWAYS FAILS HERE
            return shape;
        });
}

Because ctx => ctx.ShapeFactory.CreateAsync(shapeType, model)) is more like a shapeBuilder delegate than an initializeAsync delegate, so, fixed by using instead

public ShapeResult Copy<TModel>(string shapeType, TModel model) where TModel : class
{
    return Factory(shapeType, ctx => ctx.ShapeFactory.CreateAsync(shapeType, model));
}

// The Factory signature being
public ShapeResult Factory(string shapeType, Func<IBuildShapeContext, ValueTask<IShape>> shapeBuilder)