Yapf

Changes
- The verification module has been removed. NOTE: this changes the public APIs
by removing the "verify" parameter.
- Changed FORCE_MULTILINE_DICT to override SPLIT_ALL_TOP_LEVEL_COMMA_SEPARATED_VALUES.
- Adopt pyproject.toml (PEP 517) for build system
Fixed
- Do not treat variables named `match` as the match keyword.
- Fix SPLIT_ARGUMENTS_WHEN_COMMA_TERMINATED for one-item argument lists.
- Fix trailing backslash-newline on Windows when using stdin.

Fixed
- Corrected bad distribution v0.40.0 package.

Added
- Support for Python 3.11
- Add the `--print-modified` flag to print out file names of modified files when
running in in-place mode.
Changes
- Replace the outdated and no-longer-supported lib2to3 with a fork of blib2to3,
Black's version of lib2to3.
Removed
- Support for Python versions < 3.7 are no longer supported.

Added
- Add a new Python parser to generate logical lines.
- Added support for ` fmt: on` and ` fmt: off` pragmas.
Changes
- Moved 'pytree' parsing tools into its own subdirectory.
- Add support for Python 3.10.
- Format generated dicts with respect to same rules as regular dicts
- Generalized the ending comma heuristic to subscripts.
- Supports "pyproject.toml" by default.
Fixed
- Split line before all comparison operators.

Added
- Look at the 'pyproject.toml' file to see if it contains ignore file information
for YAPF.
- New entry point `yapf_api.FormatTree` for formatting lib2to3 concrete
syntax trees.
- Add CI via GitHub Actions.
Changes
- Change tests to support "pytest".
- Reformat so that "flake8" is happy.
- Use GitHub Actions instead of Travis for CI.
- Clean up the FormatToken interface to limit how much it relies upon the
pytree node object.
- Rename "unwrapped_line" module to "logical_line."
- Rename "UnwrappedLine" class to "LogicalLine."
Fixed
- Added pyproject extra to install toml package as an optional dependency.
- Enable `BLANK_LINE_BEFORE_NESTED_CLASS_OR_DEF` knob for "pep8" style, so
method definitions inside a class are surrounded by a single blank line as
prescribed by PEP8.
- Fixed the '...' token to be spaced after a colon.

Added
- Renamed 'master' branch to 'main'.
- Add 'BLANK_LINES_BETWEEN_TOP_LEVEL_IMPORTS_AND_VARIABLES' to support setting
a custom number of blank lines between top-level imports and variable
definitions.
- Ignore end of line ` copybara:` directives when checking line length.
- Look at the 'pyproject.toml' file to see if it contains style information for
YAPF.
Changed
- Do not scan excluded directories. Prior versions would scan an excluded
folder then exclude its contents on a file by file basis. Preventing the
folder being scanned is faster.
Fixed
- Exclude directories on Windows.