This commit renames the DebugManager to "DebugMenu", changes the
structure of its registry and the signature of its hook (useDebugMenu).
In the previous DebugManager:
- the "debug" registry was flat;
- new items were declared and created with the "useDebugManager" hook;
- these items were arbitrary functions returning a set of items.
The problem with that system was its extensibility, meaning that no
external module could hook on these arbitrary functions passed to the
hook.
In the new DebugMenu:
- the "debug" registry has multiple levels:
> root: "global" items, found in most debug menus
> subcategories: each subcategory has a name corresponding to the
context it's instantiated in (e.g.: the "view" subcategory will only
contain views-related debug menu items)
- all items are pre-declared in their corresponding category, and either
return a debug menu item or null;
- the hook activates/deactivates categories, and passes a context which
will be used by the item factories (passed as argument).
Julien Mougenot
a688f13cd4