enforce editor line spacing

Author: stephnr

.editorconfig

@@ -0,0 +1,11 @@
+root = true
+
+[*]
+end_of_line = crlf
+insert_final_newline = true
+trim_trailing_whitespace = true
+charset = utf-8
+
+[*.{py, json}]
+indent_style = space
+indent_size = 4