Add VS marketplace "assets" to project as source code, migrate off architectshack.com, automate release pipeline.

[TaoK]

As @TaoK's time investment into this project has been tapering off, and others have expressed interest in improving things, it's not only important to set up an environment that easily enables contributions eg with a Contributor Agreement (#232), but also ensure that the "management" side of things be made more amenable to contribution.

There are probably three main things this entails, in the short term:

1. Moving off of @TaoK's personal site architectshack.com
2. Checking in the source for any other assets, eg the copy (as it is) on the Visual Studio Marketplace. This should also support contribution of a project logo, which is something sorely missing.
3. Automating the release pipeline to the maximum possible extent, eg using AppVeyor as proposed elsewhere (and started, but never completed)

As far as I know, getting any such shared/maintained copy and assets into the VS Marketplace would still be a manual process, but at least amenable to contribution and relatively streamlined.

[TaoK]

A famous session by @madskristensen provides a bunch of useful notes, many of which I at least haven't internalized: https://www.youtube.com/watch?v=MFiRotBsVKU

[spottedmahn]

the video is private, FYI