Schema tool for Eventing v1

[n3wscott]

Adds a for developers schema dump tool to use for CRD schemas.

[codecov]

Codecov Report

Merging #5087 (6b9ff09) into main (3b812fc) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #5087   +/-   ##
=======================================
  Coverage   83.28%   83.28%           
=======================================
  Files         283      283           
  Lines        7947     7947           
=======================================
  Hits         6619     6619           
  Misses        956      956           
  Partials      372      372           

Impacted Files	Coverage Δ
pkg/apis/eventing/v1/trigger_types.go	100.00% <ø> (ø)
pkg/apis/eventing/v1beta1/trigger_types.go	100.00% <ø> (ø)

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[knative-prow-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: vaikas

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[vaikas]

/lgtm