Add a option to disable synapse extension in STIX export (SYN-5429)

[vEpiphyte]

No description provided.

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: -0.10 ⚠️

Comparison is base (0edc8bc) 97.33% compared to head (081dde8) 97.24%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3177      +/-   ##
==========================================
- Coverage   97.33%   97.24%   -0.10%     
==========================================
  Files         224      224              
  Lines       44793    44797       +4     
==========================================
- Hits        43601    43561      -40     
- Misses       1192     1236      +44     

Flag	Coverage Δ
linux	97.24% <100.00%> (+<0.01%)	⬆️
linux_replay	?

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Impacted Files	Coverage Δ
synapse/lib/stormlib/stix.py	99.14% <100.00%> (+<0.01%)	⬆️

... and 9 files with indirect coverage changes

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