Feat struct log

[vEpiphyte]

Add structured logging option

[codecov]

Codecov Report

Merging #2179 (41a14ed) into master (52ec732) will decrease coverage by 0.13%.
The diff coverage is 97.14%.

@@            Coverage Diff             @@
##           master    #2179      +/-   ##
==========================================
- Coverage   97.16%   97.03%   -0.14%     
==========================================
  Files         158      159       +1     
  Lines       31791    31819      +28     
==========================================
- Hits        30889    30874      -15     
- Misses        902      945      +43     

Flag	Coverage Δ
linux	97.03% <97.14%> (+<0.01%)	⬆️
linux_replay	?

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Impacted Files	Coverage Δ
synapse/tests/utils.py	93.80% <ø> (-2.11%)	⬇️
synapse/common.py	97.60% <95.00%> (-0.21%)	⬇️
synapse/lib/cell.py	98.06% <96.15%> (+<0.01%)	⬆️
synapse/cortex.py	96.22% <100.00%> (-0.70%)	⬇️
synapse/lib/stormlib/stix.py	99.06% <100.00%> (ø)
synapse/lib/structlog.py	100.00% <100.00%> (ø)
synapse/lib/hiveauth.py	96.19% <0.00%> (-0.73%)	⬇️
synapse/lib/view.py	93.72% <0.00%> (-0.70%)	⬇️
... and 4 more

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Changes made.