feat(authelia): add remote name/email headers and pass http method

This adds newer remote credential information from the auth_request headers sent by Authelia, Remote-Name includes the users display name, and Remote-Email includes their email. Additionally it sets the X-Forwarded-Method header to the original $request_method detected by nginx, which is used for the new acl rule method filter.

root/defaults/authelia-server.conf

@@ -1,4 +1,4 @@
-## Version 2020/05/31 - Changelog: https://github.com/linuxserver/docker-swag/commits/master/root/defaults/authelia-server.conf
+## Version 2021/04/21 - Changelog: https://github.com/linuxserver/docker-swag/commits/master/root/defaults/authelia-server.conf
 # Make sure that your authelia container is in the same user defined bridge network and is named authelia
 
 location ^~ /authelia {
@@ -28,7 +28,8 @@ location = /authelia/api/verify {
     proxy_set_header Host $host;
     proxy_set_header X-Original-URL $scheme://$http_host$request_uri;
     proxy_set_header X-Real-IP $remote_addr;
-    proxy_set_header X-Forwarded-For $remote_addr; 
+    proxy_set_header X-Forwarded-For $remote_addr;
+    proxy_set_header X-Forwarded-Method $request_method;
     proxy_set_header X-Forwarded-Proto $scheme;
     proxy_set_header X-Forwarded-Host $http_host;
     proxy_set_header X-Forwarded-Uri $request_uri;