fixed pathlib issues for python < 3.6 compatibility

[dorpvom]

No description provided.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@95916f5). Click here to learn what that means.
The diff coverage is 100%.

@@            Coverage Diff            @@
##             master       #2   +/-   ##
=========================================
  Coverage          ?   87.72%           
=========================================
  Files             ?       99           
  Lines             ?     2705           
  Branches          ?        0           
=========================================
  Hits              ?     2373           
  Misses            ?      332           
  Partials          ?        0

Impacted Files	Coverage Δ
fact_extractor/unpacker/unpack.py	96.29% <100%> (ø)
...actor/test/unit/helperFunctions/test_statistics.py	100% <100%> (ø)
fact_extractor/plugins/unpacking/xerox/code/dlm.py	98.63% <100%> (ø)
...extractor/plugins/unpacking/xerox/test/test_dlm.py	100% <100%> (ø)

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