Posibrains no longer limited to 1, but cyborgs cannot have repeat names

[Rukofamicom]

About The Pull Request

Effectively reverts #6807 in favor of one of the alternative ideas posted.

Instead of limiting posibrain spawns to one, if you attempt to become a cyborg name that has already existed your name will be randomized obscuring your identity as a respawn. Even normal cyborg players are expected not to use meta knowledge they gained before spawning so this should not cause any more issues than any other ghost spawn may.

Why It's Good For The Game

There is no reason to have a single ghost role restricted to single-use while others are not.

This is also in line with the desire to enable more ghost spawns, allowing more players to rejoin the round after death, including silicon players.

Testing Photographs and Procedure

Changelog

🆑
tweak: Players are no longer limited to a single positronic brain per round.
tweak: Cyborgs may no longer have duplicate names, unless they are being rebuilt from the same brain that was previously a cyborg - if you are respawning as a fresh cyborg and do not choose a different character profile first, you will be given the default cyborg name instead of becoming a second copy of the same cyborg.
/:cl:

[Rukofamicom]

Oversight has been fixed, this is safe to merge and actually works instead of just appearing to work now.

[PowerfulBacon]

Transforming modules calls update name through update_module_innate. Putting an MMI in a borg also calls that function. This will throw errors in chat about your name being randomised when you transform (even though the name doesn't actually get randomised). Also if a cyborg is detonated and then the MMI is placed in a borg, it will likely reject the name. There needs to be some way to distinguish between a new cyborg and an existing cyborg getting the same name.

[Rukofamicom]

weird, no failed checks but it claims there were