list content with attributes

[jacalata]

The 'list' methods only show an ID and name, which isn't always enough.. Fixing #268

These are the new arguments

list: {projects,workbooks,datasources,flows} View content --machine Format output as csv for machine reading

Attributes to display: -a, --address Show web address of the item --children Show children of the item -d, --details Show all attributes of the item -n, --name Show item name -o, --owner Show item owner