add WIP CPU architecture draft proposal

scripts/mdbook-dia.py

@@ -0,0 +1,26 @@
+#!/usr/bin/env python3
+import json
+import sys
+import os
+import subprocess
+from pathlib import Path
+
+def main():
+    if len(sys.argv) > 1:
+        if sys.argv[1] == "supports":
+            sys.exit(0)
+        sys.exit(1)
+    out = sys.stdout
+    sys.stdout = sys.stderr
+    context, book = json.load(sys.stdin)
+    src: Path = Path(context["root"]) / context["config"]["book"]["src"]
+    for root, dirs, files in os.walk(src):
+        for file in files:
+            file = Path(root) / file
+            if file.suffix == ".dia":
+                out_file = file.with_suffix(".dia.svg")
+                subprocess.run(["dia", "-n", "-e", out_file, file], check=True)
+    print(json.dumps(book), file=out)
+
+if __name__ == "__main__":
+    main()