OPENDJ-1602 New pluggable storage based backend
SuffixContainer.java:
Added simple index names, copied from EntryContainer.
Now extends Closeable.
RootContainer.java:
Now extends Closeable.
EntryContainer.java:
Referenced constants from SuffixContainer.
org.opends.server.backends.persistit: ADDED package with the following class:
PersistitBackend.java, PersistitRootContainer.java, PersistitSuffixContainer.java, PersistitDN2ID.java, PersistitID2Entry.java
KeyValueStore.java, NotImplementedException.java: ADDED
PluggableStorageBackend.java:
Updated with a few more possibilities.