Need for a view on the top of pg_stat_monitor to produce similar results as pg_stat_statements

[dutow]

In Support, We are dealing with customers who have pg_stat_statement (a large portion) and those who are going to have pg_stat_monitor.
All our analysis queries and scripts are targeted for pg_stat_statement. So a view that provides similar output as pg_stat_statement is important when we deal with unknown customer environments.

https://jira.percona.com/browse/PG-334