findNextRunDate: Find next run date for automated reports
Description
Find the next date that an automated report is supposed to be run. Likely,
this function will only be relevant for shiny apps when this date is to
be printed
Character string of format "YYYY-MM-DD" defining the date of
the very first run. If set to NULL (default) or a none future date (compared
to the date represented by baseDayNum for the current year) it will be
disregarded.
returnFormat
String providing return format as described in
strptime in the current locale. Defaults to
"%A %d. %B %Y" that will provide something like
'Mandag 20. januar 2019' in a Norwegian locale