Free Code Camp Twitch API Pass-through

USAGE:
Replace the Twitch API base URL https://api.twitch.tv/helix with https://twitch-proxy.freecodecamp.rocks/helix. Use this endpoint according to the Twitch API documentation.

NOTES:
- This server caches data to lower the request rate. To prevent abuses this server accepts GET requests only, and serves only routes /users?(login=|id=), /games?id=, and /streams?(user_id|user_login). These are more than enough to complete the challenge.

- This server will keep providing a static snapshot of the old API data, for the routes /streams/:user | users/:user | /channels/:channel at the endpoint https://twitch-proxy.freecodecamp.rocks/twitch-api. It will serve data ONLY for the streamers profiles listed in the challenge description, at freeCodeCamp - Use the Twitch JSON API.