validate that either all or none of a list of params are present

Changes for 1.02 - 2024-01-29

• Remove test for obsolete generate_documentation method
• 2015-03-21 1.01 Minor change to wording in auto-documentation (or => and); Only test Data:😁omain stuff with perl >= 5.10
• 2011-09-02 1.00 Initial release