Plugin wanted: pidstat collector

[PatrykMatyjasek]

I'd like to have collector to get metrics from pidstat utility. It allows to collect resources consumption per process.
Using command pidstat -urdwl -h we are able to list all processes running on.
Flags used:
● -u prints cpu usage metrics
● -r prints memory usage metrics
● -d prints storage i/o metrics
● -w prints context switches statistics
● -l prints whole process command
● -h prints all values horizontally