Create separate ARCHIVE_JOB_REPORT table from the ARCHIVE_JOB_QUEUE

This issue will also include changes for the following to-do list from issue #603:

• switch the last update of MOUNT_ID first, then unlock the DB access and then do the SELECT JOB_ID, MOUNT_ID ... to get the job info
• Yes to: make JOB_ID the primary key + add index for MOUNT_ID