Enable left badge, hidden badge

Manually composit badge on icon bitmap

Follow up cls to render dot and badge in separate views

Fixes: 161168537

Test: drag collapsed stack left and right
- top bubble moves badge right and left
- no badge for bubbles below

Test: expand stack from left and right
- stack and overflow bubbles have right-side badge

Change-Id: I7da824ef120033c65c9a0faee23ef2c2e5dc89a7