Better Support for Scopes and Collections with `cbc` utils

Support for Scopes and Collection in cbc and cbc-pillowfight was first introduced as a hidden feature and intentionally not documented. However, now that CB Server 7 has shipped, we must revisit the implementation of that feature, and add better support for Scopes and Collections in a way that's consistent with our other utils. Of course, this should also be documented, including the command line output and man pages.

Action Items:

• Review related tickets for context and implement the feature in a way that is consistent with our other command line utilities.
• Update any related documentation, command line output, and man pages.
• Close any of the related tickets with a comment pointing to the new approach.