MvcSiteMapNodeAttributeDefinitionProvider GetTypesFromAssembly bug

[adomass]

    protected virtual IEnumerable<Type> GetTypesFromAssembly(Assembly assembly)
    {
        try
        {
            return assembly.GetTypes();
        }
        catch (ReflectionTypeLoadException ex)
        {
            return ex.Types;
        }
    }

should be changed to
try
{
return assembly.GetTypes();
}
catch (ReflectionTypeLoadException ex)
{
return e.Types.Where(t => t != null);
}

Otherwise e.Types returns some types as nulls and this causes nullreference exeption
Can use extension as we do in https://github.com/VirtoCommerce/vc-community/blob/dev/src/Core/CommerceFoundation/Frameworks/Extensions/AssemblyExtensions.cs