Allow curly brace block for faultdef

I desire my faultdefs to allow being both a comma-delimited list and a brace list (like an enum) ``` faultdef OUT_OF_MEMORY, INVALID_FREE, MISALIGNED, INVALID_RANGE, NODE_POOL_EXHAUSTED; ``` And ``` faultdef { OUT_OF_MEMORY, INVALID_FREE, MISALIGNED, INVALID_RANGE, NODE_POOL_EXHAUSTED } ``` Should be mutually exclusive. <img width="411" height="605" alt="Image" src="https://github.com/user-attachments/assets/cdc3d16c-0330-422d-910b-bdbd429b220a" /> <img width="866" height="927" alt="Image" src="https://github.com/user-attachments/assets/b6e88b19-56f4-4f66-bba1-3d19af88749a" /> As you can see by the above screenshots, it does get pretty ugly the more faults you declare.