Gate cooldown permission.

[Pheotis]

Use Case

In certain gamemodes, being able to frequently use stargates would break gameplay design.
Also, sometimes, stargates can get bugged, causing players to enter an infinite loop.

Proposed Solution

Perhaps we could have a per-player cooldown meta value, in MS?
Perhaps this could be set to a non-zero value by default?

Additional Context

Suggested by zincentimeter in this discord message

[Thorinwasher]

Also, sometimes, stargates can get bugged, causing players to enter an infinite loop.

I think that can be avoided if we make a proper fix for #370

Perhaps we could have a per-player cooldown meta value, in MS?

Sorry, I'm really bad at litterals, what does "MS" mean?