Scheduled weekly dependency update for week 14

[pyup-bot]

Update fonttools from 4.5.0 to 4.7.0.

Changelog

### 4.7.0 ``` --------------------------- - [cu2qu] Added ``fontTools.cu2qu`` package, imported from the original `cu2qu <https://github.com/googlefonts/cu2qu>`__ project. The ``cu2qu.pens`` module was moved to ``fontTools.pens.cu2quPen``. The optional cu2qu extension module can be compiled by installing `Cython <https://cython.org/>`__ before installing fonttools from source (i.e. git repo or sdist tarball). The wheel package that is published on PyPI (i.e. the one ``pip`` downloads, unless ``--no-binary`` option is used), will continue to be pure-Python for now (1868). ``` ### 4.6.0 ``` --------------------------- - [varLib] Added support for building variable ``BASE`` table version 1.1 (1858). - [CPAL] Added ``fromRGBA`` method to ``Color`` class (1861). ```

Links

- PyPI: https://pypi.org/project/fonttools - Changelog: https://pyup.io/changelogs/fonttools/ - Repo: http://github.com/fonttools/fonttools

[codecov[bot]]

Codecov Report

Merging #188 into master will decrease coverage by 0.04%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #188      +/-   ##
==========================================
- Coverage   88.20%   88.15%   -0.05%     
==========================================
  Files          12       12              
  Lines        2297     2297              
  Branches      302      302              
==========================================
- Hits         2026     2025       -1     
  Misses        193      193              
- Partials       78       79       +1     

Impacted Files	Coverage Δ
Lib/fontMath/test/test_mathTransform.py	87.17% <0.00%> (-2.57%)	:arrow_down:

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