feat: provide multiple output formats for a single scan (#1724)

[b31ngd3v]

closes #1724

[codecov-commenter]

Codecov Report

Merging #1740 (692db20) into main (fe2d5d9) will decrease coverage by 0.79%.
The diff coverage is 78.43%.

@@            Coverage Diff             @@
##             main    #1740      +/-   ##
==========================================
- Coverage   86.33%   85.54%   -0.80%     
==========================================
  Files         308      308              
  Lines        6615     6653      +38     
  Branches     1071     1080       +9     
==========================================
- Hits         5711     5691      -20     
- Misses        672      724      +52     
- Partials      232      238       +6     

Flag	Coverage Δ
longtests	85.54% <78.43%> (-0.80%)	⬇️

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

Impacted Files	Coverage Δ
cve_bin_tool/output_engine/__init__.py	71.42% <70.00%> (+0.40%)	⬆️
cve_bin_tool/cli.py	72.51% <72.72%> (-0.14%)	⬇️
test/test_output_engine.py	96.92% <73.68%> (-1.95%)	⬇️
cve_bin_tool/output_engine/util.py	88.15% <100.00%> (+1.20%)	⬆️
test/test_cli.py	88.47% <100.00%> (-0.38%)	⬇️
test/test_source_nvd.py	60.71% <0.00%> (-39.29%)	⬇️
test/test_cvedb.py	65.21% <0.00%> (-34.79%)	⬇️
test/test_available_fix.py	76.47% <0.00%> (-23.53%)	⬇️
cve_bin_tool/available_fix/redhat_cve_tracker.py	71.42% <0.00%> (-8.93%)	⬇️
cve_bin_tool/nvd_api.py	75.20% <0.00%> (-8.80%)	⬇️
... and 4 more

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[terriko]

I love the way you've handled the file extensions. I do wonder if that might need some more documentation so people know it's going to happen if they choose a single name, but that can be a separate PR.