Implemented CBUnitListManager and avoid use Custom array controller

NSArrayController observe all changed in context and can notify about
add one object and delete one object
Implemented CBUnitListManagerDelegate protocol and notify by it delegate of CBUnitListManager
Moved init model controller to method and setup it to viewController
Make Model objects platform in depended
Added uuid data to unit and init some defauls
Implemented show units after open document
Implemented verify for contains atlas in bundle
Implemented tracking circle drag on scene
Implement drag SKNode on editor scene
Implemented save drag operation to model

Implemented delegate protocol for editor scene.
Implemented get object from model by uuid
Implemented save position data for node
Implemented update all for sprite on change unit model
Implemented remove sprite on remove model object
Merge branch 'SimpleGraphicsEditor' into LevelsEditor