System sites initialization process must be able to handle the linkAccess spec option #2127
Description
Is your feature request related to a problem? Please describe.
Today, if a system site is meant to allow incoming connections from other Skupper sites,
it has to provide a RouterAccess, with pre-defined ports.
Describe the solution you'd like
Along with that, it would be nice if the initialization process could handle the Site.spec.linkAccess
flag and generate a RouterAccess with ports being defined dynamically based on availability.
This should also apply to system bundles, at installation time.