network_topology_test: Add test to verify new algorith results equals old
network_topology_test: Add test to verify new algorith results equals old

Transposed from origin unit test.

Creates a semi-random topology of racks, dcs, tokens and replication
factors and verifies endpoint calculation equals old algo.

scylladb/scylla,scylladb/scylla,avikivity/scylla,scylladb/scylla,scylladb/scylla,avikivity/scylla,avikivity/scylla