This changes how we sort columns in listings and how we display the
column headings. The default columns are now stored as lists so that
they are the same from run to run. This simplifies some of the logic in
the shell modules as well. Instead of keeping static mappings of
attributes to column headings, we now use some simple python logic, to
title case the columns.
This commit covers:
- cell-* commands
- cloud-* commands
- host-* commands
- project-* commands
- region-* commands
Finally, we noticed that the cloud-list and region-list commands were
behaving differently from the rest of the -list commands. This
unifies the interface to add the --detail flag.
Closes-bug: #1659103
Closes-bug: #1659427
Closes-bug: #1668221
Change-Id: If5906780e501c7b9ba93ecf54a7bcf6db5ddfa1c
683f342506