This refactors the targets used to build the shared framework and its .zip files. There are lots of reasons motivating this: Arcade convergence, migration to VSTS, making it easier to build this locally, etc.
Changes:
* Moves move content of build/Sharedfx.{props/targets} into eng/targets/SharedFx.Common.{props/targets}
* Update the build to produce a `runtime.$rid.Microsoft.AspNetCore.App` package (not just the one with symbols in it)
* Refactor the targets which produce .tar.gz/.zip files into separate projects in `src/Installers/`
* Refactor installers, unit tests, and the framework projects to use ProjectReference to flow dependencies between different parts of the build.
* Makes it easier to build the shared framework locally (for the inner dev loop, you can run `dotnet build -p src/Framework/Microsoft.AspNetCore.App/src/ -r win-x64`)
* Add build definition for Azure DevOps
* Put code for metapackages in a subfolder
* Update targets to prepare for submodules merging into this repo
* Add source code for windows installer
* Add source code for Debian installers
List explicitly as .csproj files the scenarios for which the offline package cache is important
Produces new artifacts designed for various scenarios, such as:
* Docker (where xml doc files are not needed)
* Azure web apps (where 1.x SDKs must still be supported, but xml docs are not needed)
Changes:
* Add a test project with simple unit tests for the shared framework
* Add root-level Directory.Build.props/targets files
* Cleanup .csproj files to reduce duplication
Nate McMaster
Nate McMaster
Justin Kotalik
Pranav K
Ryan Brandenburg