First release. This version is functionally equivalent to Font Bakery version 0.8.13, with two notable differences:
1. The `freetype-py` library is installed by default. Consequently, the `freetype` extra was removed since it's no longer necessary. A warning message will be displayed if the removed `freetype` extra is invoked during the installation of `openbakery`. This warning message can be safely disregarded.
2. To run `check-googlefonts` or `check-ufo-sources` checks it's necessary to install `openbakery` with the new extras named `googlefonts` or `ufo-sources`, respectively. Alternatively, you can use another new extra named `all`; this will install all the Python libraries required by all the checks.