Add pack project or script for the Analyzers authoring template #9915
Description
Context
#9789 added a template for custom analyzer.
In order for that to be usable by our customers - we need to be publishing this to nuget feed along with our other binaries. So we should have the package produced from our repo - ideally as part of our build script
Goal
- The template is packed into versioned nuget package during the run of build.cmd