Add initial import for archivebot viewer
viewer: Structure the model. Support identless files.
viewer: Add basic audit page
viewer: Fix regex to work on WARC part files
viewer: Add stats view
viewer: Aggredate sizes on public date instead of job date.
viewer: Fix stats off by 1 on month
viewer: Flush data every 3 days
viewer: Rewrite to use controls package. Use Column chart for daily.
viewer: Flush db only before populating data.
Merge branch 'topic/archive_viewer' into next