[metrics-bugs] #16426 [Metrics/Onionoo]: Add parse history for tarballs in archive directory

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#16426: Add parse history for tarballs in archive directory
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 Reporter:  karsten          |          Owner:  metrics-team
     Type:  enhancement      |         Status:  needs_review
 Priority:  Low              |      Milestone:
Component:  Metrics/Onionoo  |        Version:
 Severity:  Normal           |     Resolution:
 Keywords:                   |  Actual Points:
Parent ID:                   |         Points:
 Reviewer:                   |        Sponsor:
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Comment (by iwakeh):

 Looks fine passes tests and checks.  Merge ready.

 I added some quick tweaks to things I noticed in the reviewed classes.
 Please review three more commits in
 [https://gitweb.torproject.org/user/iwakeh/onionoo.git?h=task-16426 my
 branch].

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/16426#comment:7>
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