pretty up the output when not in reporting mode

check for corner case where there are no HD SNs to be found

clean up output
From testing on boss.emulab: set bsidx_bass=1000 to fill gaps in database
  found and handle case where "ERROR DISK OUT OF ORDER" when SN=UNKNOWN

fix the what if the database is out of order for drive serial numbers - or local search found UNKNOWNs and databases has values

entry but no matching blockstore entry according to the bsidx.

Normalize the HD type.

some (human?) has made a blockstores entry but not a blockstore_attributes
entry.
search the files for a configuration the has the hard disk serial numbers.

add checkwce test. don't try and delete unknown serial number from blockstores. less verbose output.