Create a page for how the SDK and Visual Studio work together

**Help us make content visible**

- Tell us what search terms you used and how you searched docs.
- Tell us what docs you found that didn't address your concern.

**Describe the new article**

- Explain why this article is needed.
- Suggest a location in the Table of Contents.
- Write an abstract. In one **short** paragraph, describe what this article will cover.
- Create an outline for the new article. We'll help review the outline and approve it before anyone writes the article.

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This should be an easy access to other pages around SDK selection and resolution.

We see confusion around what parts of the SDK are used from Visual Studio which is particularly bad around what MSBuild tasks/targets are selected when there is a global.json (and therefore why we discourage global.json).