First, adding a logger argument allows the caller to have a logger
already set up with whatever extra fields they want here.
Secondly, we need to return the Outcome instead of a simple boolean so
that it can be passed on to the Reporter later (need to make the right
decision on increasing reputation vs decreasing it).
Thirdly, we collect the cached reputation information from the overlay
when creating the Orders, and return it from ReverifyPiece. This will
allow the Reporter to determine what reputation-status fields need to be
updated, similarly to how we include a map of ReputationStatus objects
in an audit.Report.
Refs: https://github.com/storj/storj/issues/5251
Change-Id: I5700b9ce543d18b857b81e684323b2d21c498cd8
35f60fd5eb