Themeparks.wiki proxy

This is a quick proxy for themeparks.wiki wait times API to turn the response into a map instead of an array. This makes handling it in Home Assistant a little easier.

Deployment to RPi

1. Cross-compile to ARM: env GOOS=linux GOARCH=arm GOARM=7 go build -o themepark-proxy
2. scp the binary and Dockerfile to RPi: scp themepark-proxy user@server:~/themepark-proxy
3. Restart docker compose on the server.