Feature: cts-cli: Add cts-cli option to display failures

Adding this option to cts-cli means that all regression tests
now have this option.

cts-cli was writing error messages to a file only.
These now get written to the command line when the
verbose option is used.

All other regression tests either always write errors
to the command line (attrd, exec, fencing) or
already have the behavior that cli now has
(scheduler).

closes T514