VS2017 Getting Started doc updates

[guardrex]

Fixes #1480

Notes

• Still rough! Ruf! Ruf! 🐕 Even after review and merge, I'd like to come back in a week or two and work these a bit more.
• New images! ... but more needed in a few spots. Let's not hold it up tho just for a couple that I can add later.
• Propose we keep the old images in the media folder. They might be linked into other docs. After all docs in this area have dedicated static asset folders for their images, we can delete all of the images in the media folder safely.
• If there are more docs that need updating under Review topics that use Visual Studio 2017 RC #1480, I can do those, but I suppose not holding up the whole 🌏 planet 🌍 for these would be good.
• @mairaw I don't think you added the red stroke outlines to the images you did for VS2017 RTM initial update #1663. I got it covered ... I opened Add stroke outlines to images #1675 for it.

I'll remove the WIP label after the build runs and I fix any broken links.

I'll ping when it's ready for a 👀 look 👀.

[dnfclas]

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