added some editor metadata

.editorconfig

@@ -0,0 +1,12 @@
+# EditorConfig is awesome: https://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true

pyproject.toml

@@ -0,0 +1,7 @@
+[tool.black]
+line-length = 140
+
+[tool.isort]
+atomic = true
+profile = "black"
+line_length = 140