Enable Mocha Test Explorer Integration

[JustinGrote]

PR Summary

Consolidates the RunTests entrypoint to work with both direct debugging and the Mocha Test Explorer vscode extension.

Other fixes:

• Moves launch workspace configs from code-workspace into the vscode-powershell folder (required for test explorer integration)
• Move common mocha configuration out to separate configuration file
• Eliminates the separate launch/attach configs and unifies them into a single config.
• Re-enables ANSI output for Azure Devops test output
• Refactor runtests/index to runtests/runtestsinner, and provide more clarity as to what is going on
• Move some workspace config comments to be inline with their setting so they are more portable
• Add slow and timeout indicators to several tests to suppress their warnings about their normally slow runtime

Limitation

The "debug test" button in the explorer may occasionally not hit a breakpoint due to a race condition between the debugger attaching and the test explorer attaching for debug. I have requested a fix be made to resolve this, for now it's best to click the "debug all" button when debugging tests rather than debug individual.

PR Checklist

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