Add missing fields that make usage fail

[Falco20019]

I tried to use distroessed with .NET 6 and it failed due to not mapping vs-mac-version and vs-mac-support.

[Falco20019]

I'm also not sure if the type for those with JsonIgnore are correct. I would assume that these should be string? instead.

[richlander]

Re-using some earlier feedback ...

https://github.com/richlander/distroessed/pull/8/files/1ebe54fe77ef8d814043bb1952a57ca721273442#diff-4757b05d5af996f8549bad46428706e5f8109f41d4fef6a20a861e72192b2f2d

I'd prefer to not use [JsonUnmappedMemberHandling(JsonUnmappedMemberHandling.Disallow)] for objects with these properties. This isn't ideal, but it seems much better than the alternative.

This PR is still open: dotnet/core#9425. It's not currently a priority to resolve that, but is very much where we're headed. I want to ensure that these properties don't get written to files like https://github.com/dotnet/core/blob/main/release-notes/8.0/8.0.0/release.json. That may happen if we accept this change.

There are other properties like this, like https://github.com/dotnet/core/blob/2d75c33267d6e37bcbe91b313237a74961ef5774/release-notes/1.0/releases.json#L214. In the tool where the release.json files are generated, I'm choosing to ignore all those old properties. I'm using the most naive approach (for convenience) for reading those files, so the old releases.json files are relevant. They are used to populate releases-index.json.

[richlander]

Sorry for taking so long to give feedback on these PRs! I definitely want to get the PRs merged.