Actually copy copyFiles when building in Visual Studio.

[veelo]

From the changelog:

copyFiles can now be used in VisualD projects.

Files that are needed for the application to run can be specified in the copyFiles build option, which causes these files to be copied to the target path. The dub generator for VisualD now replicates this behaviour, so that this kind of applications can be successfully debugged in Visual Studio.

[dlang-bot]

Thanks for your pull request and interest in making D better, @veelo! We are looking forward to reviewing it, and you should be hearing from a maintainer soon.
Please verify that your PR follows this checklist:

• My PR is fully covered with tests (you can see the coverage diff by visiting the details link of the codecov check)
• My PR is as minimal as possible (smaller, focused PRs are easier to review than big ones)
• I have provided a detailed rationale explaining my changes
• New or modified functions have Ddoc comments (with Params: and Returns:)

Please see CONTRIBUTING.md for more information.

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[maxhaton]

@veelo ready for merge?

[veelo]

Yes this is ready, thank you.

[maxhaton]

Yes this is ready, thank you.

Good to go