Refactor oauth1 code for updates

The keystoneclient code for oauth1 support has changed.
As such, we should remove the delete, list and authenticate
functions, since they are not in keystoneclient.

Also, we must now pass in the project id when creating a
request token. Additionally we must now pass in roles
when authorizing a request token.

Added functional tests to ensure output and input args
are the same.

bp add-oauth-support
Change-Id: I559c18a73ad95a0c8b7a6a95f463b78334186f61
Merge "Refactor oauth1 code for updates"
Image create and set command updates and tests

Refactor image create and set commands to properly handle properties.
This is particularly tricky with exclusive booleans as in this case leaving
both choices off the command line should NOT assume a default value but
leave the existing value unchanged.

Properties were not being updated correctly in the 'image set' command.
Refactor it to use the same pattern as in other SetXxx commands.
Add tests for arg handling.

Change-Id: I123a64c9b4feecab25a3e2013cc047f55b1c9967