ingress/model: Add json tags for all fields
ingress/model: Add json tags for all fields

This commit is to add json tags for all fields under models, which can
be helpful for troubleshooting and debuggability.

Signed-off-by: Tam Mach <2524536bcff1dac29d2f6b38b02eb7c94efb5019@cilium.io>

cilium/cilium,cilium/cilium,cilium/cilium,cilium/cilium,cilium/cilium