Include additional NuGet files in solution.

Author: panesofglass

WebApiContrib.Formatting.MsgPack.sln

@@ -7,6 +7,9 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WebApiContrib.Formatting.Ms
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = ".nuget", ".nuget", "{52D9EB0C-6A1F-4034-BF30-7179D7ED843B}"
 	ProjectSection(SolutionItems) = preProject
+		.nuget\NuGet.Config = .nuget\NuGet.Config
+		.nuget\NuGet.exe = .nuget\NuGet.exe
+		.nuget\NuGet.targets = .nuget\NuGet.targets
 		.nuget\packages.config = .nuget\packages.config
 	EndProjectSection
 EndProject