Added webhook filters

[ddevcap]

No description provided.

[codecov-commenter]

Codecov Report

Merging #53 into master will decrease coverage by 4.00%.
The diff coverage is 27.55%.

@@            Coverage Diff             @@
##           master      #53      +/-   ##
==========================================
- Coverage   54.46%   50.45%   -4.01%     
==========================================
  Files          13       14       +1     
  Lines        1120     1316     +196     
==========================================
+ Hits          610      664      +54     
- Misses        454      587     +133     
- Partials       56       65       +9     

Impacted Files	Coverage Δ
webhook.go	35.38% <26.58%> (-13.64%)	⬇️
webhook_filters.go	28.20% <28.20%> (ø)

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