route_replies: rizon: Add 403, 442 expectations
route_replies: rizon: Add 403, 442 expectations

Rizon replies with a 403 if the channel does not exist,
and with a 442 if you're not on that channel.

Resolves #1421

znc/znc,psychon/znc,BtbN/znc,znc/znc,DarthGandalf/znc,psychon/znc,Zarthus/znc,BtbN/znc,psychon/znc,DarthGandalf/znc,Zarthus/znc,elyscape/znc,dgw/znc,BtbN/znc,markusj/znc,DarthGandalf/znc,dgw/znc,elyscape/znc,znc/znc,Zarthus/znc,BtbN/znc,elyscape/znc,elyscape/znc,markusj/znc,markusj/znc,BtbN/znc,dgw/znc,znc/znc,znc/znc,elyscape/znc,psychon/znc,markusj/znc,DarthGandalf/znc,elyscape/znc,dgw/znc,DarthGandalf/znc,Zarthus/znc,psychon/znc,Zarthus/znc,DarthGandalf/znc,markusj/znc,psychon/znc,BtbN/znc,znc/znc,dgw/znc,markusj/znc,dgw/znc,Zarthus/znc