feat(policy): Add CTP support for TCP/TLS listeners

[aoledk]

What this PR does / why we need it:

Enable user to attach ClientTrafficPolicy ^1 to TCP/TLS listeners, available fields are:

• tcpKeepalive
• connection
• enableProxyProtocol
• tls
• ~~timeout~~ (new field will be needed to specify tcp idle timeout in clientTimeout ^2, raised in other issue #3343)

Which issue(s) this PR fixes:

Fixes #3163

[aoledk]

/retest

[aoledk]

/retest

[aoledk]

/retest

[aoledk]

/retest

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 80.45977% with 17 lines in your changes are missing coverage. Please review.

Project coverage is 67.43%. Comparing base (8206e11) to head (926a50b).

Files	Patch %	Lines
internal/gatewayapi/clienttrafficpolicy.go	77.92%	14 Missing and 3 partials :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3337      +/-   ##
==========================================
+ Coverage   67.41%   67.43%   +0.02%     
==========================================
  Files         166      166              
  Lines       19186    19214      +28     
==========================================
+ Hits        12934    12957      +23     
- Misses       5322     5325       +3     
- Partials      930      932       +2     

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[aoledk]

@arkodg Do you think whether it's necessary to split this big PR to multiple small PRs for easier review ? Each small PR for single field in CTP.

[arkodg]

@arkodg Do you think whether it's necessary to split this big PR to multiple small PRs for easier review ? Each small PR for single field in CTP.

sorry for the delay in reviewing this one, on it !