Allow responding to cookie requests #1453
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Currently, if a server is awaiting the cookie response, it is impossible to block the request without forcing the server to wait indefinably, as https://jd.papermc.io/velocity/3.4.0/com/velocitypowered/api/event/player/CookieRequestEvent.ForwardResult.html#handled() just discards any requests without sending any responses and there is no api to manually send a response.
The current approach is similar to https://jd.papermc.io/velocity/3.4.0/com/velocitypowered/api/event/player/ServerLoginPluginMessageEvent.html, but if you consider that instead of this, it would be better to add a method in https://jd.papermc.io/velocity/3.4.0/com/velocitypowered/api/proxy/ServerConnection.html to send a response then I would change it