Linque

**Full Changelog**: https://github.com/xxao/linque/compare/v2.2.1...v3.0

- Fixed ordinal rank

**Full Changelog**: https://github.com/xxao/linque/compare/v2.2...v2.2.1

- Add 'argsort' and 'argsort_by'.
- Add 'rank' and 'rank_by'.

**Full Changelog**: https://github.com/xxao/linque/compare/v2.1...v2.2

- Add 'contains_by' method.
- Add 'single_or_default' method.

- More .NET consistent names.
- Add 'single'method.
- Separate methods with and without key (e.g. 'group' vs. 'group_by').
- Separate methods for first and last with and without default (e.g. 'first' vs. 'first_or_default').

Initial release