A cron trigger module is actually not that "Generic" and a useful trigger type for a lot of rules.
Therefore I suggest to remove the visibility "HIDDEN" with this PR.
I have also added a context "cronexpression" to the TEXT configuration value, so that UI's can offer a cron expression
selection widget.
(we currently have: 'time','item','script','channel','dayOfWeek','rule')
Signed-off-by: davidgraeff <david.graeff@web.de>
Remove inconsistent visibility "PUBLIC". This value is not documented (there is only HIDDEN and VISIBLE) and this is the only module type that uses PUBLIC instead of just not setting this value at all.
Signed-off-by: davidgraeff <david.graeff@web.de>
