Click Option Group Versions Save

• Add optgroup.help_option decorator to add help option to the group (PR #50)
• Use GitHub Actions instead of Travis CI for CI
• Delete tox runner
• Add Python 3.11 to the setup classifiers

• Add tests/ directory to tarball
• Add tests_cov extra dependencies for testing with coverage

• Move frame gathering into error code path (PR #34)
• Fix typos (PR #37)
• PEP 561 support (PR #42)
• Update docs dependencies and Travis CI Python version matrix (PR #43)

Bump version of Click to <9

• Do not use default option group name. An empty group name will not be displayed
• Slightly edited error messages
• All arguments except name in optgroup decorator must be keyword-only

• Fix incompatibility with autocomplete: out of the box Click completion and click-repl (Issue #14)

• Add AllOptionGroup class: all options from the group must be set or none must be set (PR #13)
• Fix type hints
• Update docs

• Support multi-layer wrapped functions (PR #10)
• Fix flake8 issues

• Add support for hidden options inside groups (#2)