Bug fix - update piffle import

[rwood-97]

Fix for piffle import

[codecov]

Codecov Report

Attention: Patch coverage is 33.33333% with 4 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
mapreader/__init__.py	33.33%	4 Missing ⚠️

Flag	Coverage Δ
unittests	79.41% <33.33%> (-0.03%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
mapreader/__init__.py	72.97% <33.33%> (-5.82%)	⬇️

... and 4 files with indirect coverage changes

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