p2p/simulation: move connection methods from swarm/network/simulation (#18323)

p2p/simulations/connect.go

p2p/simulations/connect_test.go

p2p/simulations/network.go

p2p/simulations/test.go

swarm/network/simulation/connect_test.go

swarm/network/simulation/events_test.go

swarm/network/simulation/node.go

swarm/network/simulation/node_test.go

swarm/network/simulation/service.go

swarm/network/simulation/simulation.go

swarm/network/stream/delivery_test.go

swarm/network/stream/snapshot_retrieval_test.go

swarm/network/stream/snapshot_sync_test.go

swarm/network/stream/visualized_snapshot_sync_sim_test.go