add editorconfig

Author: Cube707

.editorconfig

@@ -0,0 +1,16 @@
+[*]
+charset = utf-8
+insert_final_newline = true
+
+[*.py]
+indent_style = space
+indent_size = 4
+max_line_length = 88
+
+[*.{yml,yaml}]
+indent_style = space
+indent_size = 2
+max_line_length = 120
+
+[Makefile]
+indent_style = tab