Work Progress - Jun 15 - Jun 21

Demo: "SB in beta" link above

Work done:
* Allow multiple event codelets of the same name in the same object. The y location (x location and then z location if there is a tie) of the codelet will determine the execution sequence of the event codelets. As an example, load this xml script. Change the relative locations of the two codelets to see the effect. (Note: one can no longer hide any scripts)
* Core: auto-expand the scriptlet window. Try pulling a scriptlet to a position at which the script cannot be fully displayed. The scriptlet window expands accordingly.
* Fix the bug that one can't edit the properties of some PObject (which inherits the superclass' Reset() method) after doing a simulation.
* Fix the bug that one can't select a plait object on the simulation canvas in the CC app.
* Allow adjustment of the number of decimal points to be shown for grid axis numbers (as an advanced property of the engine object).
* Core: On "EXPAND GRAPHIC VIEW" then "REDUCE GRAPHIC VIEW", the splitters restores just before they hit the “expand” button.