feat(globe): render the tilt and north-up buttons from the globe actions store

The camera orientation controls publish whether the map is tilted and the
camera's whole-degree heading instead of writing the buttons' attributes,
and answer tilt and north-up through the globe actions store. The new
GlobeCompass renders the heading, so a rotating camera re-renders only the
compass. The store drops an unchanged camera state and keeps each clear
owner's busy state, so the buttons show the shell that answers them: a
shell replaced by a newer one, or disposed mid-clear, leaves the live
shell's state alone, and an older shell that answers again shows its own.
createOwners gains owns() and ownerOf().

CHANGELOG.md

@@ -72,8 +72,9 @@
   are the kit's new `UiChip`. The selects are the kit's new `UiSelect`, the
   status badges its new `UiBadge` and the one-line empty states its new
   `UiEmpty`.
-  The top-center clear and share buttons call the shell through the new
-  globe actions store. `syncScopeControls` (`./ui/display`),
+  The top-center clear, share, tilt and north-up buttons call the shell
+  through the new globe actions store, which also carries the camera's tilt
+  and compass heading. `syncScopeControls` (`./ui/display`),
   `shouldHideCollapsedRightPanels` (`./ui/layout`) and
   `bindClearLayersControl` (`./ui/layers`) are deprecated: the Display view,
   the rail and the globe actions view now own what they did. `./ui/input` imports Vue