Add actions to the top bar of edit mode

On the DefaultEditTileGrid (used by InfiniteGridLayout and
PaginatedGridLayout) add actions for the TopAppBar.

* If scene_container is enabled, add an action to go to Settings
* If qs_edit_mode_tabs is enabled, add an action to reset the tiles.

If only one action is visible, just the icon will appear, if more than
one action is visible, they will be grouped in a DropdownMenu.

Test: atest InfiniteGridLayoutEditTileGridTest
Test: atest EditTopBarActionsViewModelTest
Flag: com.android.systemui.scene_container
Flag: com.android.systemui.qs_edit_mode_tabs
Fixes: 411410845
Change-Id: I9e7a54a291834eec47202f0b43b967e87c8b5336