Add a Pipeline to produce Releases on demand

[LukeCroteau]

Right now I'm currently building everything as we get PRs, or as I make changes.

Sure would be nice if I bothered to set up a pipeline.

Maybe if I create this issue I'll get this done.

[zerfl]

I have started experimenting with GitHub actions to implement this. On my dotnet-ci branch you can see the results. The workflow itself is visible here: dotnet-build.yml

In order for this to work I had to migrate the projects to SDK style projects: zerfl@906ba2b
Also had to disable NuGet package generation for the class library RaidExtractor.Core: zerfl@5ab9308

A new release will be created every time a new tag is pushed to the repo. Currently, the title of the release is simply the tag name, but this could easily be customized to your needs.
You could also automate changelog generation using many available actions like https://github.com/loopwerk/tag-changelog. However, most actions work with SEMVER tagging which this project does not use.

Hope this helps a bit.