output-eve: expose SCEveFileType to Rust with bindgen

[jasonish]

There is an unfortunate side-affect that one has to read
output-eve-bindgen.h for the documentation on this type, however, I
think we can resolve that in time.

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Codecov Report

❌ Patch coverage is 0% with 30 lines in your changes missing coverage. Please review.
✅ Project coverage is 82.17%. Comparing base (279f22a) to head (55256bf).
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Additional details and impacted files

@@           Coverage Diff           @@
##             main     #299   +/-   ##
=======================================
  Coverage   82.17%   82.17%           
=======================================
  Files        1000     1000           
  Lines      263663   263675   +12     
=======================================
+ Hits       216658   216685   +27     
+ Misses      47005    46990   -15     

Flag	Coverage Δ
fuzzcorpus	60.19% <0.00%> (-0.01%)	⬇️
livemode	18.76% <0.00%> (-0.15%)	⬇️
netns	18.94% <0.00%> (+0.01%)	⬆️
pcap	44.67% <0.00%> (+0.05%)	⬆️
suricata-verify	65.50% <0.00%> (+0.01%)	⬆️
unittests	59.24% <0.00%> (-0.01%)	⬇️

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