[DynareDev] [Trac] #164: consider using bvar provided by Zha and Waggoner instead of our own

#164: consider using bvar provided by Zha and Waggoner instead of our own --------------------------+------------------------------------------------- Reporter: houtanb | Owner: Type: feature | Status: new Priority: major | Milestone: 4.3 Component: Core M-files | Version: Keywords: | --------------------------+------------------------------------------------- Their code provides a superset of ours.