SYSML13 — Ports that have behavior ports should be behavioral

The resolution of issue 13178 only requires ports of behavioral ports to be behavioral, but should also require ports owning behavioral ports to be behavioral.

This would prevent proxy ports bound to internal parts from having nested
behavior ports that direct flows and invocations to those internal parts. This is
useful for grouping features of the internal part type in various ways on nested
behavioral ports, without adding nested ports to the internal part type.
Disposition: Closed, no change