tooling: Add recommended VS Code extensions for local development.

Author: nedseb

.vscode/extensions.json

@@ -0,0 +1,11 @@
+{
+    "recommendations": [
+        "charliermarsh.ruff",
+        "ms-python.python",
+        "ms-python.vscode-pylance",
+        "ms-vscode.vscode-serial-monitor",
+        "esbenp.prettier-vscode",
+        "github.vscode-pull-request-github",
+        "vivaxy.vscode-conventional-commits"
+    ]
+}