Support for specifying 'L' and 'LW' with other days in day-of-month field

[abicky]

This PR supports cron expressions whose day-of-month field has "L" with other days such as "0 15 10 1,L * ? 2010." The changes are the same as https://github.com/quartz-scheduler/quartz/pull/1126 except that I've rebased the branch to the latest main branch.

Changes

• Supports cron expressions whose day-of-month field has "L" with other days such as "0 15 10 1,L * ? 2010"
• Fixes the behavior in the case when the day-of-month field has 'W' with other days of the month like "0 15 10 2W,16 * ? 2010"
  • The expression used to be interpreted as "0 15 10 2W,16W * ? 2010"

---

Checklist

• [x] tested locally
• [x] updated the docs
• [x] added appropriate test

• [x] signed-off on the DCO referenced in the CONTRIBUTING link below via git commit -s on my commits, and submit this code under terms of the Apache 2.0 license and assign copyright to the Quartz project owners (If you're not using command-line, you can use a browser extension )

  In submitting this contribution, I agree to the terms of contributing as referred to here: https://github.com/quartz-scheduler/contributing/blob/main/CONTRIBUTING.md

[jhouserizer]

ok, i botched resolving the conflicts. :)