Convert `datetime` in Lua within `OffsetDateTime` in Java

[valery1707]

Since datetime in Lua supports working with offsets, it is logical to allow it to be converted to OffsetDateTime in Java to expand the possibilities of working with dates

I haven't forgotten about:

• [x] Tests
• [ ] Changelog - do I need to add something into Changelog?
• [x] Documentation
• [x] Commit messages comply with the guideline
• [x] Cleanup the code for review. See checklist

Related issues:

Part of https://github.com/tarantool/cartridge-java/issues/214

[ArtDu]

@valery1707 You are right that OffsetDateTime is valid for Tarantool. ZonedDateTime also valid for this.

I'll check your implementation later.

Also, check the CI cause it's red now

[valery1707]

@ArtDu I update the code according to line length limit rule

[ArtDu]

@ArtDu I update the code according to line length limit rule

Good, but 2.10.6 tests are still red

[valery1707]

@ArtDu I see, will analyze soon