Add Library.title and Library.description into refresh logic on generation

[alackerbauer]

Is your feature request related to a problem? Please describe.
The publisher expects those elements. A missing title results in an error message, a missing description results in a warning message: cqframework/sample-content-ig#19

Describe the solution you'd like
Add those elements when freshly creating a Library (by using the _refresh tooling command)

Describe alternatives you've considered
Another way to resolve the error message is by referencing the resource directly in the base ImplementationGuide and adding a name and description element for the artifact list population that way. Regardless, for completeness, it would be good if a generated library has a title as well as a description element present.