Add EditorConfig options for Python

While the desired options for indent size and style are Python's
defaults, let's make it explicit by specifying it in the EditorConfig.

As part of this, this also removes unnecessary inline formatting options
for Python files.

.editorconfig

@@ -5,6 +5,10 @@ charset = utf-8
 insert_final_newline = true
 trim_trailing_whitespace = true
 
+[*.py]
+indent_size = 4
+indent_style = space
+
 [*.sh]
 indent_style = tab
 function_next_line = true