* Move PKA field from models node to host level
* Move PKA field from api models node to host level
* Adapt logic package to node->host PKA
* Adapt migration-related code to node->host PKA
* Adapt cli code to node->host PKA
* Change host PKA default to 20s
* On IfaceDelta, check for PKA on host
* On handleHostRegister, set default PKA
* Use a default PKA
* Use int64 for api host pka
* Reorder imports
* Don't use host pka in iface delta
* Fix ConvertAPIHostToNMHost
* Add swagger doc for host PKA field
* Fix swagger.yml
* Set default PKA only for new hosts
* Remove TODO comment
* Remove redundant check
* Have api-host pka be specified in seconds
* model changes
* additional fields for extclient create
* add DNS to extclient config
* extclient name checks
* update extclient
* nmctl extclient
* final tweaks
* review comments
* add extclientdns to node on ingress creation
* fix to add ingress dns to api (#2296)
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Co-authored-by: Aceix <aceixsmartX@gmail.com>