add queries inside innodb and queued to cacti

You can get those values from innodb status on this line:

0 queries inside InnoDB, 0 queries in queue

They are used when you run mysql with innodb_thread_concurrency != 0, so you can see how much threads are running inside innodb and how much are waiting in the queue, also can make sense when innodb_thread_concurrency = 0 as you can check for your concurrency but queue will be always empty.

In most cases we will see both zeros and it will help only for edge cases having issues with threads concurrency.