Add checker for netpbm

[SaurabhK122]

No description provided.

[codecov-commenter]

Codecov Report

Merging #836 into master will increase coverage by 5.33%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #836      +/-   ##
==========================================
+ Coverage   83.21%   88.55%   +5.33%     
==========================================
  Files         152      154       +2     
  Lines        2550     2559       +9     
  Branches      279      279              
==========================================
+ Hits         2122     2266     +144     
+ Misses        359      228     -131     
+ Partials       69       65       -4     

Flag	Coverage Δ
#longtests	88.55% <100.00%> (+5.33%)	⬆️

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

Impacted Files	Coverage Δ
cve_bin_tool/checkers/__init__.py	100.00% <ø> (ø)
test/test_data/__init__.py	100.00% <ø> (ø)
cve_bin_tool/checkers/netpbm.py	100.00% <100.00%> (ø)
test/test_data/netpbm.py	100.00% <100.00%> (ø)
cve_bin_tool/version_scanner.py	85.71% <0.00%> (+1.78%)	⬆️
cve_bin_tool/extractor.py	61.06% <0.00%> (+3.05%)	⬆️
cve_bin_tool/cli.py	84.48% <0.00%> (+5.17%)	⬆️
test/test_scanner.py	90.58% <0.00%> (+10.58%)	⬆️
... and 4 more

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[terriko]

Looks good!