Split IOperationCallbackProvider into ISearchOperationCallbackFactory and IModificationOperationCallbackFactory since we are going to have a variety of implementations for them in Asterix.

git-svn-id: https://hyracks.googlecode.com/svn/branches/hyracks_lsm_tree@2361 123451ca-8445-de46-9d55-352943316053
43 files changed