Add transportserver-template config

[ssrahul96]

Proposed changes

Created custom-template Config for TransportServer

Fixes https://github.com/nginxinc/kubernetes-ingress/issues/5459

Checklist

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• [ ] I have read the CONTRIBUTING doc
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] I have checked that all unit tests pass after adding my changes
• [ ] I have updated necessary documentation
• [ ] I have rebased my branch onto main
• [ ] I will ensure my PR is targeting the main branch and pulling from my branch from my own fork

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[ssrahul96]

Team, Could it be reviewed and merged?

[j1m-ryan]

Hi @ssrahul96 , can you create an issue for this, and attach it to this PR? You can read about this process in CONTRIBUTING.md

[vepatel]

Hey @ssrahul96, can you please resolve some of the conflicts when you've a chance?