minor: Add basic editorconfig and pre-commit hooks to enforce style for whitespaces (#1926)

.editorconfig

@@ -0,0 +1,25 @@
+# https://editorconfig.org/
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_style = space
+indent_size = 4
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.{json,yaml,yml}]
+indent_size = 2
+
+[*.md]
+indent_size = 2
+x-soft-wrap-text = true
+
+[*.rst]
+indent_size = 4
+x-soft-wrap-text = true
+
+[Makefile]
+indent_style = tab