Per-game server side password setting to unpack the game without prompting user

[Astro1247]

Is your feature request related to a problem? Please describe.
Games packed in archives can have different passwords and setting the only system-wide password for it is not always the best approach.

Describe the solution you'd like
It would be cool if server admin can set the password for particular game that will be used to unpack it without prompting the user. There is already feature for server admins to edit game data, its title, description and other things and it would be cool to include the password field there to free up user from looking for a password in game description and manually copy pasting it to unpack the game.

[KairuByte]

Not going to lie, this feels like the perfect type of thing to include in #148