Update dotnet deps + run formatting on all relevant files + some fixes

[o-l-a-v]

This PR is just a suggestion on some housekeeping I think is due.

Feel free to close it or ask for changes.

PR Summary

• Copied settings for VSCode, EditorConfig and Markdownlint from PowerShell/PowerShell.
• Updated all dotnet deps with dotnet-outdated.
• Ran formatter on all relevant files with VSCode extension alexr00.formatallfilesinworkspace.
• Fixed missing dep in perf/benchmark.
• Use actual cmdlet Install-PSResource of PSResourceGet in setupReleaseTools, not the alias Install-Module.

PR Context

Why?

• Keep syntax and style consistent with PowerShell/PowerShell, for both C#, PowerShell and Markdown.
• Run formatter on all relevant files, so that future PRs that fixes one thing does not show that the whole file changed due to running the formatter.

PR Checklist

• PR has a meaningful title
  • Use the present tense and imperative mood when describing your changes
• Summarized changes
• Make sure all .h, .cpp, .cs, .ps1 and .psm1 files have the correct copyright header
• This PR is ready to merge and is not Work in Progress.
  • If the PR is work in progress, please add the prefix WIP: or [ WIP ] to the beginning of the title (the WIP bot will keep its status check at Pending while the prefix is present) and remove the prefix when the PR is ready.
• Breaking changes
  • None
  • OR
  • Documentation needed
    • Issue filed:
• User-facing changes
  • Not Applicable
  • OR
  • Documentation needed
    • Issue filed:
• Testing - New and feature
  • N/A or can only be tested interactively
  • OR
  • 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.
  • OR
  • I have considered the user experience from a tooling perspective and enumerated concerns in the summary.