Makes the big red button only spawnable by nuke ops.

Fuck having rounds ruined in the first 30 seconds by people throwing a bomb at genetics and pushing the button, and then spamming it since, due to it being Double Agent, every other agent is also buying bombs.
Makes it so that the button is only in nuke-ops, and the bombs are NOT in double agent.
Merge pull request #2230 from Intigracy/Redbuttonisshittysoisdoubleagent

Big red button / syndicate bomb changes