Cron Tab Eval: Check whether is time to run a periodical event

This class can be used to check whether is time to run a periodical task scheduled with a crontab-like task periodic event definition.

The class takes a string that defines the minute, hour, day and month of when a periodic event should be triggered.

The class compares the event scheduling definition with the current or a specific timestamp and determines whether it is time to trigger the event.