Rename vignettes
Add tests file for Zresults

* Rename some of the other tests files
Rename and reorder tests again
Zresults operational
Update docs
Add results and curves methods for Zresults
Add Zresults and methods to package plumming
Fix typo in method docs
Update docs
Abbreviate curves headers
Assing feature names to curves data when fetched
Update results vignette