Get /t:Restore to work.

[kingerja]

Don't require VS to be installed for nuget to work.

This requires about 20 megs of checked in binaries I tried started off with only the ones needed however every different scenario seemed to required more binaries and after I was past 30 binaries being pulled in I just opted to grab the whole folder to reduce the chance of there being an issue.

This approach effectively locks this module to a specific version of these restore targets. We could go the route of only conditionally using our targets if they are not already installed on the box. I personally strongly dislike that approach as it puts us at the mercy of machine installs and makes builds unpredictable which in my book is huge. But the cost of owning this package may become significant. Perhaps we can push the nuget team to release this functionality as a nuget package.

Also I updated the version of Module\Microsoft.Nuget\Newtonsoft.Json.dll to the correct version. 8.0.0.0

Anyway if you have a better idea to make this cleaner please let me know. And if you know of an official pre-existing nuget package that packs these files then let me know about that too.

Issue #104

[kingerja]

As discussed going with the route of not shipping the nuget restore targets and simply creating a dummy restore target that does nothing in the command line scenario where VS is not installed. If VS is installed with these nuget targets then the dummy restore target will be overridden providing the user with the nuget experience.