Various name encoding fixes, fix multiline descriptions

[neoGeneva]

Hi there,

I was having some issues with refitter so I've created a fix for them, I hope they're of some use.

Things I've changed are:

• Multiline descriptions show on new lines without being commented out
• Query string parameter names aren't being encoded safely, things like dashes and reserved keywords causing problems
• Client methods aren't being encoded safely, this pull request just deals with full stops, I couldn't see any way to leverage NSwag's encoding
• Properties with no names aren't generated correctly. This one is weird and might be a bit specific to the doc I'm generating from.
• Fixed the smoke-test.ps1 cleanup of generated files
• Added vscode files
• Added IngramMicro.json sample for smoke tests

[christianhelle]

This is really good! Thanks for adding a new OpenAPI spec for testing and more thanks for updating the local smoke test script!