Implement guest login via SSH login

[TerrorBite]

When connecting via SSH, unknown users are given the choice to use a guest character. Currently this feature connects to the admin character instead of an actual guest character. Guest characters and connecting to them needs to be implemented.

Requirements

• Implement Guest account
• Have Guest character(s) in database
• Use a Guest character when user logs in as Guest (instead of Admin)
• Use Guest's entered character name for the Guest character
• Create temporary new Guest character instead of using an existing one

[TerrorBite]

This is MOSTLY working now. It still needs to make use of a guest character but the auth flow is complete.

[TerrorBite]

Guest login now correctly uses the guest character. However, it does not change the name of the guest character to the one that the user entered. This is the last requirement for this issue.