Persistent Store configuration is renamed

[dmagda]

Folks, FYI

In order to align the naming of the store from marketing, documentation levels to the APIs level, PersistenceConfiguration was renamed to PersistentStoreConfiguration.

The changes are merged to this branch: https://github.com/apache/ignite/tree/ignite-5267 <https://github.com/apache/ignite/tree/ignite-5267>

—
Denis