Reference cards coverage test

Version tested: 2.16.0 (development 28181-34a890c4ae)

This page is regenerated every night by a crontab, it lists the GP functions which are not mentioned in any of the reference cards, sorted by help section then aphabetically. An immediate goal is to make that list empty and keep it that way.

refcard*.tex: 3 functions

• graphic: parploth
• graphic: parplothexport
• number_theoretical: znsubgroupgenerators