* xds generation for routes api gateway
* Update gateway.go
* move buildHttpRoute into xds package
* Update agent/consul/discoverychain/gateway.go
* remove unneeded function
* convert http route code to only run for http protocol to future proof code path
* Update agent/consul/discoverychain/gateway.go
Co-authored-by: Mike Morris <mikemorris@users.noreply.github.com>
* fix tests, clean up http check logic
* clean up todo
* Fix casing in docstring
* Fix import block, adjust docstrings
* Rename func
* Consolidate docstring onto single line
* Remove ToIngress() conversion for APIGW, which generates its own xDS now
* update name and comment
* use constant value
* use constant
* rename readyUpstreams to readyListeners to better communicate what that function is doing
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Co-authored-by: Mike Morris <mikemorris@users.noreply.github.com>
Co-authored-by: Nathan Coleman <nathan.coleman@hashicorp.com>
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