added a new movieclip for new Property inspector naming: "PropertyInspectorNew" and made a small change in the workspace movieclip to hide input_txt field
A new class to show set properties for all types of activities, called when Application attaches PropertyInspectorNew movieclip on the root of authoring Application
added a property for piHeight set from PropertyInspectorNew class and created set metthod to set the height for PI called onResize on Application and get method to return the new piHeight set to adjust the canvas and PI height