Space in Application Name creates invalid .NET Core Project

[smurawski]

When creating a .NET Core app, if the application name provided has a space in it, then namespaces in the application generated are invalid, leading to failed builds.

[smurawski]

Additionally, with the publish command, the output argument is not quoted, leading to failure of the step.

example - with Build.StagingDirectory being the same as the application name, which has spaces:

--configuration $(BuildConfiguration) --output $(Build.StagingDirectory)/pub