Ignite 3.0: Dynamically created SQL indexes lifecycle and management, basic cases

Executing dynamic index management with CREATE/DROP INDEX commands requires specific management of index lifecycle.

It includes at least:

1. Triggering necessary operation on affinity nodes (nodes hosting data of a table with new index).
2. Adding information about new index to configuration.
3. Monitoring process of index creation and updating index status.
4. Providing notification mechanism to SQL engine so index will be used if and only if it is fully built and ready to be used.
5. Cancelling operation and cleaning stuff up in case user drops index.