Improvements to WAF Runner utility

[Anilm3]

WAF Runner Improvements:

• Run on multiple inputs with --input <json input> [<json input>..]
• Run on multiple configs with --ruleset <json/yaml file> [<json/yaml file>..]
• Print events, actions and derivatives

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (c4ac22b) 83.23% compared to head (aa1508a) 83.20%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #236      +/-   ##
==========================================
- Coverage   83.23%   83.20%   -0.04%     
==========================================
  Files         106      106              
  Lines        4176     4168       -8     
  Branches     1914     1911       -3     
==========================================
- Hits         3476     3468       -8     
  Misses        279      279              
  Partials      421      421              

Flag	Coverage Δ
waf_test_none	?
waf_test_sse2	83.20% <ø> (ø)

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