ISPN-4757 Remote event filter/converter callbacks can use raw data

* It enables filter/converters to work with raw data.
* When using raw data, filter/converter factory parameters provided
by the user are not unmarshalled.
* When using raw data, custom event is flagged so that the client
does not attempt to marshall it.
* Such changes require protocol changes, so added Hot Rod
protocol 2.1.
ISPN-5015 Add Hibernate session factory parameter info in 2LC docu
ISPN-5020 Create OSGi blueprint file for SoftIndexFileStore
ISPN-4444 After state transfer, a node is able to read keys it no longer owns from its data container

* mark the keys stored as L1
* this avoid read the keys that are going to be invalidated during the ST
Implement purgeOnJoin

The joiner will still do the preload, but the entries will be removed from
the data container.

Also includes a fix for ISPN-3217 (entries not written to the cache store
on a backup owner with CACHE_MODE_LOCAL).

A hack was needed to avoid triggering ISPN-3443 (state transfer undoing the
remove operations).