Add Variable node to return the list of WoT protocol bindings a UA server supports

[barnstee]

This can be implemented as a simple data node returning an enumeration of the supported WoT protocol bindings:
Released: https://www.w3.org/TR/wot-binding-templates/#table-existing-protocol-binding-templates
All bindings: https://w3c.github.io/wot-binding-templates/#protocol-bindings-table

[jestun]

I would say that there should be something like a "WoTBindingProtocolEnum" enumeration DataType listing all possible binding protocols (the actual content/info probably need to be discussed).
Then there could be an optional variable node like "SupportedBindingProtocols" in the WoTAssetConnectionManagementType that would provide an array including enum members of the supported binding protocols.