Direct native piping

[rjmholt]

PR Summary

Resolves #1908.

Implements direct piping between native executables, preventing issues with stringification and encoding.

PR Context

PR Checklist

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• Breaking changes
  • None
  • OR
  • Experimental feature(s) needed
    • Experimental feature name(s): PSNativeCommandRawPiping
• User-facing changes
  • Not Applicable
  • OR
  • Documentation needed
    • Issue filed:
• Testing - New and feature
  • N/A or can only be tested interactively
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  • Make sure you've added a new test if existing tests do not effectively test the code changed
• Tooling
  • I have considered the user experience from a tooling perspective and don't believe tooling will be impacted.
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    • Impact on PowerShell Editor Services which is used in the PowerShell extension for VSCode
      (which runs in a different PS Host).
      • Issue filed:
    • Impact on Completions (both in the console and in editors) - one of PowerShell's most powerful features.
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    • Impact on PSScriptAnalyzer (which provides linting & formatting in the editor extensions).
      • Issue filed:
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[lygstate]

Good to see, that's what I want

[daxian-dbw]

A one-pager design doc would be very useful to review the design and code (if an RFC is too heavy in this case).

[ghost]

This pull request has been automatically marked as stale because it has been marked as requiring author feedback but has not had any activity for 15 days. It will be closed if no further activity occurs within 10 days of this comment.

[lygstate]

anything to stop this to be implemented