Update pyproject configs.

  - black now is set ot 80 char max line width
  - isort configs that play well with black

Author: Diptorup Deb

pyproject.toml

@@ -1,2 +1,11 @@
 [tool.black]
-exclude = 'versioneer.py'
+exclude = "version"
+line-length = 80
+
+[tool.isort]
+multi_line_output = 3
+include_trailing_comma = true
+force_grid_wrap = 0
+use_parentheses = true
+ensure_newline_before_comments = true
+line_length = 80