feat(External): Use the folder /external for backups/whitelist/render files that are not part of the project

Also set up connect proxy to rewrite connect requests to /external to the public_html directory
doc(README): Add basic readme with some install instructions
feat(Whitelist): Add whitelist page that shows the latest list of players in the whitelist.json
fix(Whitelist): Use correct external URL
feat(Whitelist): Style the whitelist page by making it a list of Minecraft faces stolen from oc.tc