low-level-test updates (playground-dev/...@1028379)
low-level-test updates (playground-dev/...@1028379)

- Add: _spaces.os.eventKind.MOUSE_MOVE
- Add: _spaces.ps.ui.pointerPropagationMode.ALPHA_PROPAGATE_WITH_NOTIFY
- Add: _spaces.os.notifierKind.EXTERNAL_MOUSE_MOVE
- Add: notifierGroup.DIRECT
- Add: _spaces.window.getBounds()
- Add: _spaces.window.invalidate()
- Add: _spaces.window.changeBounds()
- Add: _spaces.window.setOverlayCloaking()
- Add: _spaces.ps.descriptor.sendDirectMessage()
- Add: _spaces.ps.processQueuedCommands()
- Mod: Made _ref names unique in play(), batchPlay(), get() negative
  cases as a debugging aid
- couple of bug fixes, other cleanup
- Add: QUnit.config.testTimeout (5000 ms set as per-test timeout)

lxfschr/spaces-adapter,lxfschr/spaces-adapter