Add soundcloak (frontend for soundcloud)

[LaptopCat]

Repository: https://github.com/maid-zone/soundcloak

Written in Go, has a pretty minimal UI. Images and song streams are not proxied (might add support in the future)

Redirecting:
soundcloud.com/<username> -> <instance>/<username>
soundcloud.com/<username>/sets/<playlist> -> <instance>/<username>/sets/<playlist>
soundcloud.com/<username>/<track> -> <instance>/<username>/<track>
on.soundcloud.com/<random id> -> <instance>/on/<random id>

soundcloud.com/search/sounds?q=<query> -> <instance>/search?q=<query>&type=tracks
soundcloud.com/search/people?q=<query> -> <instance>/search?q=<query>&type=users

It might be good to also redirect album and set searches, but I'm unsure, as they are not split by category in soundcloak search (you can only search for playlists, not specifically albums or sets)