- Add buildout.hash.cfg
- Include instance-input-schema.json describing (contains a description of the parameters) and instance-output-schema.json
- Introduce instance.cfg.in and instance-opcua.jinja.cfg.in
- Enable parameterized instance requests with nested JSON support
- software.cfg.json with software-type - default
- opcua-to-http-gw.py with OPCUA sever/client, login and data polling functionality.
- Note: Functionality incomplete due to missing asyncua dependency

This commit lays the groundwork for more flexible instance configuration. However, it's not yet
functional without the asyncua library.