[node-core-library] Support latest Win11 in getProcessBy*

[dmichon-msft]

Summary

Switches the Executable.getProcessBy* family of APIs to use powershell.exe instead of wmic.exe on Windows, since the latter has been removed from the latest versions of Windows.

Details

This conversion also allows normalizing the parser input format between Linux and Windows.

How it was tested

Local verification of command. Added unit test that invokes Executable.getProcessById and Executable.getProcessByIdAsync and verifies that the pid of the current node process is in the list and identified as node.

Impacted documentation

Method comments for Executable.getProcessById and Executable.getProcessByIdAsync.