Add support for `dotnet` CLI code coverage generation when it's released
The vstest platform team are working on adding code coverage generation to the .NET Core CLI. Windows support will come out first, currently scheduled for Q3 2018, with Linux support to follow.
We should consider adding support for this as a special case such that these reports can be autogenerated during iteration on tests and users can visualise the report using a tool such as the (VS Code Coverage Gutter)[https://github.com/ryanluker/vscode-coverage-gutters] extension.
https://github.com/Microsoft/vstest-docs/blob/master/RFCs/0021-CodeCoverageForNetCore.md
The vs-code testing api now supports code coverage. https://code.visualstudio.com/api/extension-guides/testing#test-coverage