New terms hardwareRevision and softwareRevision?

[sebastiankb]

coming from #941

From today's TD call:

• both terms can be embedded in the VersionInfo container
• however, we should also check if there are some privacy and security issue like tracking risk
• we must define them as optional

[benfrancis]

As with #946 (comment)

• https://schema.org/model
• https://schema.org/softwareVersion

{
  "@context": [
        "https://www.w3.org/2019/wot/td/v1",
        { "s": "http://schema.org" }
    ],
    "id": "urn:dev:ops:32473-WoTLamp-1234",
    "s:model": "WebLamp 2.0",
    "s:softwareVersion": "v4.2",
    "title": "MyLampThing",
    ...
}

[egekorkan]

I think that the use of schema.org for this should be put into examples in the td document.

[sebastiankb]

also see comment here #946 (comment)