Add support in packaging.psm1 to produce a .msix AppX package. Update the docker image to use the new msix package type. Update the associated yml files so AzDevOps performs the build.
## PR Context
Enable publishing PSCore6 to Microsoft Store
Refactor Unified Release Build
- Make injecting the nuget.config a template
- Make setting the version variable a template
- Add parameters to templates where needed
- Run defender scan before uploading linux packages (and rename step to plain english)
Add compliance to Coordinated build
- Also switch to mac internal pool for release build
- Also turn some duplicate tasks into templates
- Also fix issue with vscode configuration which causes yaml files not to be recogized as yaml
