Add some basic troubleshooting commands
Add some basic troubleshooting commands

These commands are intended to be general, and give users some context
for where they can look to get more information about Ark's behaviors.

Signed-off-by: Nolan Brubaker <2b78f1a11b050030c931d98cf25a8c2d3b85b913@heptio.com>

heptio/ark,heptio/ark