Use Reflection.Emit to generate IPerformanceCounterSet implementation

[MaxShoshin]

Improve performance and avoid memory allocation on accessing IPerformanceCounter.

Now:

Method	Mean	Error	StdDev	Gen 0/1k Op	Gen 1/1k Op	Gen 2/1k Op	Allocated Memory/Op
IncrementPerformanceCounter	10.871 ns	0.2447 ns	0.4887 ns	-	-	-	-
IncrementPurelPerfCounter	8.135 ns	0.1556 ns	0.1455 ns	-	-	-	-
IncrementPreviousPerformanceCounter	102.371 ns	1.445 ns	4.873 ns	-	-	-	106B