[TOOL IMPROVEMENT] Crontab non-standard style

[webysther]

Describe the solution you'd like
For non-standard cron like used in AWS this tool don't work (neither crontab.guru), the tool I found be open source and work is this one:

https://github.com/cronhub/crontab
https://crontab.cronhub.io

Maybe add the code from this one for expressions like this 0 11-22 ? * MON-FRI *
Ref.: https://docs.aws.amazon.com/glue/latest/dg/monitor-data-warehouse-schedule.html

[sharevb]

Hi @webysther and @CorentinTh, fixed in #1026