Discuss more comprehensive interface versioning

[gunnarx]

• Consider if patch level version number is needed (if it even makes sense on an interface definition).
• Also consider dot-notation version string for convenienc
• Consider additional arbitrary-string (as VSS provides)

[gunnarx]

From previous week:

• Add patch as optional, if not needed it's optional anyway.
• Add string info field (optional). Label. Same as VSS.
• Worth doing this now, and refining later.

This week:

• Consider service discovery. This is a target-environment / deployment thing. It might be implemented or not. In either case, if the definition (IDL) provides the necessary information then this can be built.
• Agreed to do as we said last week.

[gunnarx]

Close when implemented / PR sent.

[gunnarx]

NOTE! Optional patch version still missing.