Wcmatch

-**FIX**: Can't install due to requirements being assigned to setup opposed to install.

Breaking Changes
Version 2.0.0 introduces breaking changes in regards to flags. This is meant to bring about consistency amongst the provided libraries. Flag names have been changed in some cases, and logic has been inverted in some cases.

- **NEW**: Glob's `NOBRACE`, `NOGLOBSTAR`, and `NOEXTGLOB` flags are now `BRACE`, `GLOBSTAR`, and `EXTGLOB` and now enable the features instead of disabling the features. This logic matches the provided fnmatch and wcmatch.
- **NEW**: Glob's `DOTGLOB` and `EXTGLOB` also have the respective aliases `DOTMATCH` and `EXTMATCH` to provide consistent flags across provided libraries, but the `GLOB` variants that match Bash's feature names can still be used.
- **NEW**: Fnmatch's `PERIOD` flag has been replaced with `DOTMATCH` with inverted logic from what was originally provided.
- **NEW**: Documentation exposes the shorthand form of flags: `FORCECASE` --> `F`, etc.
- **FIX**: Wcmatch always documented that it had the flag named `EXTMATCH`, but internally it was actually `EXTGLOB`, this was a bug though. `EXTMATCH` is now the documented and the actual flag to use.

- **FIX**: Officially support Python 3.7.

- **FIX**: Ensure that all patterns in `glob` that have a directory preceding `**` but also end with `**` returns the preceding directory.
- **FIX**: Fix byte conversion in path normalization.
- **FIX**: Ensure POSIX character classes, when at the start of a sequence, properly have hyphens escaped following it. `[[:ascii:]-z]` should convert to `[\x00-\x7f\\-b]` not `[\x00-\x7f-b]`.
- **FIX**: Fix an issue where we would fail because we couldn't covert raw characters even though raw character parsing was disabled.
- **FIX**: Better default for file patterns. Before if no pattern was provided for files, `'*'` was assumed, now it is `''`, and if `''` is used, all files will be matched. This works better for when full path is enabled as you get the same file matching logic.

- Initial release