Add service mesh version support to sm.proto

[leecalcote]

Current Behavior sm.proto identifies service mesh by name, but excludes other metadata like service mesh version number.

Desired Behavior SPMS will need to afford for identifying a given service mesh's version #.

[leecalcote]

// @kumarabd

[kumarabd]

@leecalcote Will have a discussion with @kanishkarj and take this ahead.

[kushthedude]

There is already a field present for the same string mesh-build version

[kumarabd]

Yes, we need to clean up the proto a little. Looking into that. @kushthedude