- Updated embedded libraries:
* ttfautohint 1.8.4
* freetype 2.11.1
* harfbuzz 3.3.2
- Defined a new environment variable `TTFAUTOHINTPY_BUNDLE_DLL` that must be set to "1" (or "yes" or "true") before creating a wheel in order to build from source the `libttfautohint` shared library and bundle that in the package directory. By default this variable is not set, so when building a wheel or installing from source distribution or git clone it no longer automatically builds the bundled libttfautohint library. Instead, a `libttfautohint` shared library (`.so` on Linux, `.dylib` on macOS, `.dll` on Windows) is searched in the default system library paths via `ctypes.find_library`. On Unix, you can modify that using `LD_LIBRARY_PATH`, on Windows you do it with the `PATH` environment variable (3).
- Fixed issue with Windows paths containing backslashes incorrectly splitted in `parse_args` (2).