Theta Coins

It adds coins that you can exchange for other coins to act as a server economy

It also adds: 

• A coin ore
• A coin exchanger robot (exchanges diamonds into coins)
• A coin string (A string that you can put your coins on) (texture of string updates to show what coins you have on it)

Coin to coin exchange rates:

8 copper to 1 iron

8 iron to 1 gold

8 gold to 1 netherite

and vice versa

Don't try to move the coin string while your accessing its inventory

If you would like me to port it to another version please state in the comments and I might get around to it.