INTEL_performance_query support on Intel Iris driver
Implementation of INTEL_performance_query based on existing iris-monitor implementation and additional perf-query specific functions.
This is a new version prepared to accommodate all comments/suggestions from previous merge request at !1736 (closed)
Code structure has been changed a lot so instead of making v2 of original one, I decided to submit this as a new merge request.
This implementation has been tested with MDAPI (https://github.com/intel/metrics-discovery) and the latest GPA (ubuntu version 19.2.343286).
Edited by Dongwon Kim