Add auth and version support to socks proxy (#883)

* Add auth support to socsk proxy

* better logging

* fix lint issue

* implement fixes and version

* add to test reference too

server/src/test/resources/server-reference.conf

@@ -4,8 +4,11 @@ server.port = 4567
 
 # Socks5 proxy
 server.socksProxyEnabled = false
+server.socksProxyVersion = 5 # 4 or 5
 server.socksProxyHost = ""
 server.socksProxyPort = ""
+server.socksProxyUsername = ""
+server.socksProxyPassword = ""
 
 # downloader
 server.downloadAsCbz = false