Striped thread pool queue system view

When in the production environment exist some cluster performance issues usually it leads to the large striped executor queue size.

The number of tasks in the queue can observe by

metric. In the case queue size becomes large it's useful to have the ability to know what tasks are waiting for execution in the thread pool.

Especially, for dealing with failover scenarios.

We should create a system views to expose information about striped executor services queue.