Add the ability to generate locked chests

### What version are you seeing the problem on?

1.18.2

### Describe the issue

Add an option to the config that will lock loot chests at a certain chance when the world is generated. This will make exploring dungeons more interesting, because the player will now need to carry lockpicks and unlock chests to get loot.

### latest.log

```shell
Not needed.
```
