ttang

https://github.com/metaplex-foundation/metaplex-program-library/pull/553

I think we could remove the build-in middleware, ```rust ... server.middleware(cookies::CookiesMiddleware::new()); server.middleware(log::LogMiddleware::new()); ... ``` we can add the middleware with custom

增加和朋友玩的游戏 https://github.com/starcoinorg/dapps/pull/51