Allow AutoDiscovery to generate Device Profile

[cloudxxx8]

🚀 Feature Request

Relevant Package [REQUIRED]

This feature request is for core-metadata

Description [REQUIRED]

Some Device protocols support the profile generation, such as BACnet and OPC-UA. There might be thousands for Device Resources in those Device Profile, so the auto generation would be helpful.
However, the Profile auto discovery is protocol specific, and we should just support the general usage and allow the Device Service to implement their auto discovery logic. The current ProvisionWatcher has a mandatory field profileName and requires the Profile exists in advance.

Describe the solution you'd like

profileName in ProvisionWatch can be an empty string, and it means the Device Profile should be auto discovered.
Also, the following query parameters can be defined when triggering the auto discovery.

• use_pw - use the provision watcher mechanism - default true - if false, add all discovered devices
• discover_profiles - default false - if true, discover profiles automatically - if false, only add devices which we can match to an existing profile
• activate_devices - default false - initial value of adminstate for new devices. this is for use_pw = false
• query_only - default false - if true, don't actually add any devices or profiles, just return them in the reply (could result in very large replies)

[cloudxxx8]

@iain-anderson for awareness. could you please include this topic in the next Device WG meeting?

[cloudxxx8]

@iain-anderson have we decided to implement this?