Enable VB for dotnet cli 1.1

[KevinRansom]

Enable VB in dotnet cli 1.1.0

@livarcocc @nguerrera @srivatsn @AnthonyDGreen

[dnfclas]

@KevinRansom,
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[nguerrera]

Fill out template and tag Matt.

[KevinRansom]

Tagging @MattGertz for approval pending CI tests.

Customer scenario: VS ships with the V1.1 sdk and dotnet CLI without this change netstandard libraries and apps will not be editable in VS.

Workarounds, if any: Manually finding and installing dotnet sdk 2.0.

Risk:: Low

Performance impact : None only enabled for .vbproj

Is this a regression from a previous update?:, dotnet core support hasn't been provided in the past.

*Root cause analysis : Not yet implemented

How was this bug found?: Not yet implemented

[nguerrera]

Performance impact : None only enabled for .fsproj

.vbproj, right?

[KevinRansom]

@nguerrera yup.