Update to Xcode 10.2.1 (pods, proj metadata and Swift)

[karol-depka]

No description provided.

[vanshg]

Hi @karol-depka, thanks for the contribution! Looks like the CI is failing and I think it's because of Xcode version that Azure is using to build. (see: https://github.com/Microsoft/azure-pipelines-image-generation/tree/master/images/macos). Could you also update the azure-ci.yml file from vmImage: 'macOS 10.13' to vmImage: 'macOS 10.14'. That will use Xcode 10.2.1 by default, which is what you have compiled with. I think then the CI will pass, and I can get this merged.

[vanshg]

LGTM!

[karol-depka]

Cool. Thanks :).
Any way/plans to allow the assistant "to use a screen" ?

[vanshg]

What do you mean by use a screen?

[longnd]

I guess that means to visualize the response - like what Google home hub does.
But I don't think it's possible.

[vanshg]

There is an htmlOut field returned by the Assistant API so it might be possible