- As part of this work I also added `Microsoft.VisualStudio.Mac.LanguageServices.Razor` to be the Visual Studio for Mac specific Razor code.
- Added MSBuild infrastructure to automate creation of MonoDevelop addins (MPacks). This work enables us to not have a dependency on a specific version of monodevelop and does not require us to have tool-prerequisites on the box. Every build outputs the mpacks into the artifacts/build directory.
- Built in build-level metadata pieces to workaround how addins are typically developed. They are usually authored C# first and then config files are generated after the fact; with this changeset we auto-generate the addin.info and its corresponding assembly attributes. Both of these take information directly from the build system.
#1696