Query timeout redesign

Motivation:
Now the query timeout is set up for each node separately by the node configuration. This property isn't propagated for the all nodes of cluster. Also user cannot change / disable query timeout without restart all nodes of the cluster.

Proposal fix:

• Adds the default query timeout property to the DistributedSqlConfiguration. Use distributed metastore to store and manage the property.
• Deprecates the SqlConfiguration#defaultQueryTimeout property and use it to set up initial value of new property DistributedSqlConfiguration#defaultQueryTimeout
• Adds info about explicit query timeout to GridH2QueryRequest (boolean flag explicitTimeout=false by default). This is necessary so that the default timeout may be used for queries from old nodes.
• When query timeout is set to zero by old node (explicitTimeout=false) we assume this is the default value and use default timeout for this queries.