V2 update nonkube directory tree

[fgiorgetti]

Is your feature request related to a problem? Please describe. Update V2 nonkube directory tree to make it simpler to comprehend and document.

Describe the solution you'd like Here is the suggested tree:

[public] input/resources (read write) input/certs/{ca,client,server} (read write) runtime/resources (read only) runtime/links (read only) runtime/certs/{ca,client,server} (read only) runtime/router (read only)

[internal] internal/scripts internal/snapshot

Additional context Add any other context or screenshots about the feature request here.