Change the way that bootstrap peers are passed

[d-roak]

We want to add a bootstrap peer and remove the connection (unless we don't find other peers). We also want to allow multiple bootstrap peers to try to exchange other peers' information.

Relevant code:
https://github.com/topology-foundation/ts-topology/blob/c662c00eb9acabdb50b884191cdfaf7f545a7ad1/packages/network/src/node.ts#L54-L60