Rename collectPerfCounter to collectMetrics

[danroth27]

Performance Counters were a Windows-specific .NET Framework feature: https://learn.microsoft.com/dotnet/framework/debug-trace-profile/performance-counters

In later versions of .NET, we switched to a cross-platform Metrics model: https://learn.microsoft.com/dotnet/core/diagnostics/migrate-from-windows-performance-counters

Rename collectPerfCounters JS API should actually be collectMetrics.

[pavelsavara]

It could collect any metrics not just runtime metrics.

[danroth27]

It could collect any metrics not just runtime metrics.

Good point. How about just collectMetrics then?

[pavelsavara]

It could collect any metrics not just runtime metrics.

Good point. How about just collectMetrics then?

BTW: this maps to dotnet-counters tool so collectCounters could be good alternative

[danroth27]

@samsp-msft What's your recommendation on naming here?

[samsp-msft]

CollectMetrics is probably a better name.