A rs.cifdump utility?

[dennisbrookner]

In the matchmaps quickstart guide, I recommend using the rs.mtzdump utility to figure out what the columns in your dataset are called. However, now that matchmaps also supports cif inputs, I'm realizing that there is no equivalent command-line utility for such files! It seems to me that, if we're deciding that we want to support cifs, that we should fully commit to that.

There is also no function for writing out a cif file, but that feels less urgent to me. Others may disagree.