feat: As a user, I want to check the subordinate relationship in the Admin API

### Description

See https://github.com/apache/apisix/blob/dbe7eeebba06229d4a8df75263f2a78301cc1ca0/apisix/stream/router/ip_port.lua#L82

We need to check the subordinate relationship in the Admin API, including:
1. validate if the stream route with superior id exists and its protocol matches the subordinate
2. when deleting a stream route, check if it is referenced by another stream route