Allow non-player objects to apply the CR_PLAYER carry type without crashing the game

Because trying to access the drawangle of a player that doesn't exist is a big no-no. Also makes it so that said objects don't force the player's camera angle to change like with bots in single player.

Totally not doing this for the sole reason that I'm recreating bot Tails' flying functionality in Lua.

Not even remotely related. That is, implying that I'm even doing it at all.