Add "Invite" Button in gameroom

[mgdmgd]

Hey guys, i was thinking about this feature and it should be added ingame, it's Invite button like when you create a room you can click it every one minutes and it displays a dialog in the lobby for the players that are in lobby and they can join the room by clicking "Join" on the dialog or "Close" to close it, and this will be cool feature to be ingame : Especially for infected mode

Give me your opinion about it guys in a reply and thanks.

Regards,
mgdmgd.