Generic extension processing demo.

This package includes a demo of extension processing. The plug-in provides a menu item Demo->Print Extension Members. Invoking this menu item prints a list of the members of the actionSets extension to the console.

By providing explicit parameters to the demo test procedure in class PrintMemberIdentity you can print out member lists of other extension-points.

And by providing your own member-processing class that implements the IProcessMember interface in this package, you can provide custom extension processing procedures for members of an extension-point.