Update vulture from 0.29 to 1.0

Author: pyup-bot

dev-requirements.txt

@@ -24,6 +24,6 @@ sphinx-autodoc-typehints==1.3.0
 sphinxcontrib-spelling==4.2.0
 twine==1.12.1
 versioneer==0.18
-vulture==0.29
+vulture==1.0
 VWS-Python-Mock==2018.10.02.0
 yapf==0.24.0  # Automatic formatting for Python