Write v3-status-votes file even when we fail to make a consensus

In dirvote_compute_consensuses(), we have checks for if (n_votes <= n_voters/2) and if (!n_vote_running), which cause us to fail and abort, before we get around to the

  votefile = get_datadir_fname("v3-status-votes");
  write_chunks_to_file(votefile, votestrings, 0, 0);

lines.

We should write the votes out to the file earlier in this process, so operators can read them to see available votes even in the failure case.