Organized lists: use differents bullets for each level + hierarchical numbering of lists

Yet in bullet lists: the same bullet symbol is used for all levels.
Yet in numbered lists: the numbering has the same format for all levels.

My request is to have different graphical symbol for each level in bullet lists and to reflect the level in numbered lists.

See attached files :
1. what is yet available in XWiki
2. the requested changes when displaying lists (the current behaviour could be the default one and we could add options to handle new list presentations).