NonBlockingStoreAdapter size method returns wrong value for non segmented stores

The size method doesn't use the provided segments if the store is not segmented. https://github.com/infinispan/infinispan/blob/7206596b4a0258d0b8f1a20d78259e7f270a81ec/core/src/main/java/org/infinispan/persistence/support/NonBlockingStoreAdapter.java#L124
It should utilize publishKeys and filter out keys that don't match the given segments if the segments provided don't contain all owned segments.