issue #361 - DEVELOPMENT: Create project nature + demo project for using
filters 
http://agalaldev.info/dev/mantis/view.php?id=361

- Created Example OVAP project, with:
-- Sample Filter graph
-- Sample Video file
- The example project can be found in the New->Examples wizard in
addition to New->Project
- Stream Launch configuration auto-populates the filter graph and video
file fields when tabs are initialized