RedisCluster Lazy initialization

[CfirTsabari]

Version: Latest

Platform: Not relevnat

Description:
Using the RedisCluster class when the Redis cluster isn't available will result in an exception; that's happens because the NodesManager initialization function connects to all nodes in the cluster.
Can we extend this class to allow a lazy initialization that will only create the nodes upon first usage?
if yes i will followup with a PR.