Adds EnvoyProxy to Translator and Kube Infra Manager

[danehans]

Adds initial EnvoyProxy support to Gateway API Translator and Kube Infra Manager packages.

Fixes #713

Signed-off-by: danehans daneyonhansen@gmail.com

[codecov-commenter]

Codecov Report

Merging #924 (66e4eb9) into main (81ca4b9) will decrease coverage by 0.11%.
The diff coverage is 52.94%.

@@            Coverage Diff             @@
##             main     #924      +/-   ##
==========================================
- Coverage   63.80%   63.68%   -0.12%     
==========================================
  Files          54       54              
  Lines        7603     7617      +14     
==========================================
  Hits         4851     4851              
- Misses       2448     2459      +11     
- Partials      304      307       +3     

Impacted Files	Coverage Δ
internal/ir/infra.go	63.82% <0.00%> (-3.59%)	⬇️
internal/infrastructure/kubernetes/deployment.go	86.72% <66.66%> (-1.08%)	⬇️
internal/gatewayapi/listener.go	100.00% <100.00%> (ø)
internal/provider/kubernetes/helpers.go	81.08% <0.00%> (-0.68%)	⬇️
internal/provider/kubernetes/controller.go	49.18% <0.00%> (-0.59%)	⬇️

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[zirain]

LGTM