ISPN-4674 When sending partial topology updates, filter segment owners

* Topology updates need to filter segment owners based on the cluster
members sent to the client to cope with partial topology updates.
* Added distributed topology change under load test to replicate issue.
ISPN-3938 AdvancedAsyncCacheLoader.process() concurrency issues

Simplify ExecutorAllCompletionService to track the tasks itself instead of
using an ExecutorCompletionService.