Purchase antag token with spacebux

[aft2001]

There's also the issue that antag tokens were originally and still are used almost entirely for when an admin fucks up and ruins your antag round, and are seldom given out otherwise. And, when they are, it is an inconsistent source, such as when Pali offered an antag token to the first person to make a system that would automatically teleport a detained subject to the brig with the addition of securitrons now reporting coordinates of detained perps.