stage:showDebugLines - fix for defaultValues

By default now shows only Oriented bboxes
DisplayObj:globalTranslate fix

0,0 replaced with pivot position to correctly handle not centered
objects
Shilke2D:getDraggedObj added

Added support for dragndrop features. That allows to check currently
dragged obj from event handler
new dragndop sample

-added dragndrop sample
-clean of previous samples