Draft: Prevent 2P sidekick bots from drowning/suffocating

Prevents 2P sidekick bots from drowning or suffocating, which can become a bit annoying at times. Also applies even when a player is controlling the bot as I figure this isn't game-breaking enough to warrant a compromise, however it does not apply to scriptable AddPlayer bots. Everything works as intended when compiled but let me know if there are any other cases I need to account for.