added BTreeFileEnlistment op to register existing files as BTrees in the system

git-svn-id: https://hyracks.googlecode.com/svn/trunk@182 123451ca-8445-de46-9d55-352943316053
8 files changed
tree: 50d2347cb0cfa4f6cb3d4087862fa682f3077324
  1. hyracks/