ISPN-4024 Cross-Site State transfer: alpha version

Cross-Site Replication State Transfer in a stable topology,
i.e. no nodes leaving or joining during the state transfer.
ISPN-4053 WriteSkew not throwing an exception for AtomicMap in REPL and DIST mode

Added tests to repl and dist mode. Fixed NPE.
ISPN-3797 DataContainer should interact atomically with Persistence

* added evict() and compute() methods to perform the activation/passivation
atomically
* compute() is also used by Delta to ensure atomic copy-on-write
semantics