columns and datalist has been set in each test case in compute,
which is not necessary. This patch abstract it out and remove
all redundant code.
Change-Id: I45a3582088161f12e60e7c933da8e7dcc0ae8e7b
Closes-Bug: #1532384
Create a `configuration show` command that displays the current
configuration of the CLI. Different configurations can be
displayed using options such as --os-cloud. Passwords and
tokens are redacted by default unless the --unmask
option is specified.
Closes-Bug: #1476729
Change-Id: I0792365d0c5fa526cd09c0ed88c6bb1e2cb813a7