refactor: use JSON5 instead of JSON for BME prototype.

- use JSON5 for BME prototype description file instead of JSON to make us have ability that make comment in declaration files (TBD in future).
- upgrade corresponding scripts.
- confirm the finish of upgrading script into modern Python.

scripts/common.py

@@ -1,4 +1,4 @@
-import os, typing, logging, enum
+import logging, enum, typing
 from pathlib import Path