Aggregate core clocks value isn't available via shared memory

I created custom sensor as a workaround but it still bugs me that we have average effective clock as a standalone sensor (which is available in SVM) but don't have the same for core clocks

The average core clock wasn't considered as an important parameter. Every time I add a new value, there are users saying "enough! it's too many values!!" ;) So it's impossible to make everyone happy.