Tpetra: Deprecate "old" DistObject interface

Created by: mhoemmen

@trilinos/tpetra

Current Behavior

The following subclasses of Tpetra::DistObject currently implement the "old" DistObject interface (copyAndPermute, packAndPrepare, unpackAndCombine) instead of the "new" DistObject interface (copyAndPermuteNew, packAndPrepareNew, unpackAndCombineNew):

• CrsGraph
• BlockMultiVector

Motivation and Context

We want to deprecate and remove the "old" DistObject interface.

Related Issues

• Is blocked by #4852 (closed)