Improve parser

[YuriRomanowski]

Description

Further parser improvements. Changes:

1. Add parsing of year, allow arbitrary ordering of time reference parts;
2. Add more time formats (according to the table here;
3. Add date formats.

Related issue(s)

Continuation of #1

:white_check_mark: Checklist for your Pull Request

Related changes (conditional)

• Tests

  • [x] If I added new functionality, I added tests covering it.
  • [ ] If I fixed a bug, I added a regression test to prevent the bug from silently reappearing again.

• Documentation

  • [ ] I checked whether I should update the docs and did so if necessary:
  • README
  • Haddock

Stylistic guide (mandatory)

• [x] My commits comply with the policy used in Serokell.
• [x] My code complies with the style guide.

[dcastro]

Great work! :partying_face: This actually fixes 2 issues I had noticed, but hadn't created a github issue yet:

• 01:30am in America/Winnipeg on 6th March is parsed correctly, but if you reverse the order of the components, i.e. 01:30am on 6th March in America/Winnipeg, then only the time and date were parsed. The timezone was ignored.
• 1am on 6th November 2022 - the year was being ignored

This ended up also fixing the issue @Martoon-00 described at the bottom of this page, his example seems to work correctly now: