enhance tabulate views for lab and nodes.

[sgherdao]

Hi Joe,

A small enhancement PR to make the tables look a little bit more compact:

For lab, use textwrap to wrap the description and use lab.username instead of lab.owner (UUID).
For nodes, use the newline char instead of comma for IP addresses separator (see tabulate Mutline Cells).

Thanks,

Salah

[coveralls]

Pull Request Test Coverage Report for Build 8693790128

Details

• 8 of 8 (100.0%) changed or added relevant lines in 3 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage increased (+0.01%) to 73.955%

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Files with Coverage Reduction	New Missed Lines	%
virl/api/cml.py	1	90.7%

Totals
Change from base Build 8383605821:	0.01%
Covered Lines:	1698
Relevant Lines:	2296

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💛 - Coveralls

[xorrkaz]

Thanks for this. I can't believe I stuck with the user ID for so long. A hold-over from CML 2.2 and before. Anyway, no good deed goes unpunished. I think it would be worth updating the doc examples for cml ls and cml nodes. Can you add that to this PR as well?

[sgherdao]

That's the second worst punishment a dev could think of :).
README updated. I'm not sure if the shorter ID was mock generated or if this was because of a different CML version, but I decided to keep UUID even though they make the tables' width a bit long.

[xorrkaz]

LGTM