Update ORT to handle max_request_header_size

[jpappa200]

What does this PR (Pull Request) do?

• This PR closes Limit request_header_max_size per DS #5244 and will add a header rw to control max_haeder_request_size if the field in TP is not nil and greater than 0 . However, if the size added in TP exceeds the global setting, a header rw will be added with a comment that it is greater than the global setting and will be ignored.

Which Traffic Control components are affected by this PR?

• Traffic Ops ORT

What is the best way to verify this PR?

Tested in CDN nightly lab. Updated ORT RPM on test cache. Update Max Request Header Size field in test delivery service and queue updates on an edge cache.

If this is a bug fix, what versions of Traffic Control are affected?

This is not a bug fix.

The following criteria are ALL met by this PR

• This PR includes tests OR I have explained why tests are unnecessary
• This PR includes documentation OR I have explained why documentation is unnecessary
• This PR includes an update to CHANGELOG.md OR such an update is not necessary
• This PR includes any and all required license headers
• This PR DOES NOT FIX A SERIOUS SECURITY VULNERABILITY (see the Apache Software Foundation's security guidelines for details)

Additional Information

[jpappa200]

This PR is obsolete due to changes in headerrewritedotconfig.go