PORTWARE Connect for Siemens NX

1. Unzip anywhere (a shared network folder works).
2. Once: python -m portware_connect configure https://YOUR-PORTWARE-SERVER API_KEY
   (from this folder), or write ~/.config/portware_connect.json.
3. In NX: File > Execute > NX Open..., pick portware_nx.py (add it to a ribbon
   button for one click). Arguments: save (default), status, nostep.
