Include more package information in the progress output

Include more package information in the progress output

- For non-hashed mode, dump the full NEVRA string. This might break
  programs that are parsing the --percent format, but such programs
  almost certainly need adjusting for the added erasure progress anyway.
- For hashed mode, show package NEVR instead of just name. Otherwise
  somebody will sooner or later file a bug on "confusing output"
  as it might seem it's removing what it just installed in upgrade-mode.
  Full NEVRA would be better still but screen estate is tight as it is...
- Also get rid of headerFormat() call here, use RPMTAG_NEVR(A) extensions
  instead.