WIP: save prototype for VSCode like display

Author: MangelMaxime

.editorconfig

@@ -3,6 +3,10 @@ root = true
 
 [*]
 end_of_line = lf
+charset = utf-8
+indent_style = space
+indent_size = 4
+trim_trailing_whitespace = true
 
 [*.{fs,fsi,fsx}]
 charset = utf-8