Hi, thank you for adding support the code generation for gorilla/mux.

I've tried this feature and noticed that the order of the middlewares passed to HandlerWithOptions are reversed when they applied.

Like the implementation of middleware in gorilla mux, how about changing the order?
https://github.com/gorilla/mux/blob/3cf0d013e53d62a96c096366d300c84489c26dd5/mux.go#L143-L145

Please let me hear your opinion @jamietanna because you have worked for supporting gorilla/mux a lot!

Here's my implementation of this issue. #842