Check remote_router and local_router in mp-peering

[SichangHe]

https://github.com/SichangHe/parse_rpsl_policy/blob/f0ffe47c1d94163f8597c7eb57b1498c85064f06/route_policy_cmp/src/bgp/peering.rs#L36

In my understanding, the exact routers that propergated the route need to be know. We currently do not know them.

So, are we able to check these at all?

[cunha]

We could map the remote_route and local_router to AS numbers and check at least the ASN number, but you're right that we won't be able to do any checks based on the router.

(Aside: Specifying the routers is useful for building filters as that defines where routes are exported/imported.)

[SichangHe]

If we are not able to check these at all, I am inclined to drop these two functions.