Better output when inspecting units

[adelbertc]

Often times before I do a nelson commit to promote a workload from one namespace to another I do nelson units list first, instinctively. Unfortunately nelson units list only gives the MAJOR.MINOR, whereas nelson commit of course wants MAJOR.MINOR.PATCH.

Of course we can find the full version with nelson stacks but seems kind of weird/inconsistent. Should we just make nelson units list give the full version?