Proxy-conf - Docker mod for Nginx

This mod adds some of the proxy-conf functionality that is baked into SWAG, to Nginx.

This mod does some reshuffling to the files that originally ships with our Nginx image.

File	Change
site-confs/default	Added include directives to load the files from proxy-confs/
nginx.conf	Moved some directives to proxy.conf. Added the required map for websockets
proxy.conf	Direct copy from SWAG
ssl.conf	Based on the same file from SWAG, but changed certificate location

In nginx docker arguments, set an environment variable DOCKER_MODS=linuxserver/mods:nginx-proxy-confs

If adding multiple mods, enter them in an array separated by |, such as DOCKER_MODS=linuxserver/mods:nginx-proxy-confs|linuxserver/mods:universal-git