lib/dialer: Register dialer for socks URL scheme (fixes #4515)
lib/dialer: Register dialer for socks URL scheme (fixes #4515)

GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/4579

imsodin/syncthing,uok/syncthing,jryans/syncthing,rumpelsepp/syncthing,wweich/syncthing,jryans/syncthing,wweich/syncthing,AudriusButkevicius/syncthing,AudriusButkevicius/syncthing,imsodin/syncthing,syncthing/syncthing,xduugu/syncthing,lkwg82/syncthing,syncthing/syncthing,syncthing/syncthing,lkwg82/syncthing,wweich/syncthing,xduugu/syncthing,rumpelsepp/syncthing,xduugu/syncthing,wweich/syncthing,uok/syncthing,uok/syncthing,xduugu/syncthing,syncthing/syncthing,imsodin/syncthing,AudriusButkevicius/syncthing,syncthing/syncthing,jryans/syncthing,imsodin/syncthing,imsodin/syncthing,jryans/syncthing,syncthing/syncthing,lkwg82/syncthing,uok/syncthing,lkwg82/syncthing,rumpelsepp/syncthing,rumpelsepp/syncthing,AudriusButkevicius/syncthing