Zyin's HUD

Made Safe Overlay do intelligent calculations to improve performance even under extreme render distances. Added minecarts, saddles, and boats next to player's names in the Player Locator. Sneaking will make their name italicized. Added config option (defaulted to Off) to show distance to the other players. The Y elevation (height) of your coordinates is now color coded based on what ores can spawn at that elevation (configurable on/off).