Fix debian package generation

Previously, dotnet-deb-tool-consumer.csproj was copied to the out/artifacts folder before being restored.  This no longer works as it depends on repo properties, and there is a Directory.Build.props in teh out directory to stop projects inside it from getting the repo properties.  So this change restores it in-place instead.

build/package/Installer.DEB.proj

@@ -156,22 +156,12 @@
     <MakeDir Directories="$(DotNetDebToolOutputDirectory)" />
   </Target>
 
-  <Target Name="PrepareDotnetDebTool"
+  <Target Name="PrepareDotnetDebTool">
-          DependsOnTargets="WriteDotnetDebToolProject">
 
     <DotNetRestore ToolPath="$(PreviousStageDirectory)"
                    WorkingDirectory="$(DotnetDebToolDir)" />
   </Target>
 
-  <Target Name="WriteDotnetDebToolProject"
-          Inputs="$(MSBuildThisFileDirectory)/$(DotnetDebToolConsumerProjectName)"
-          Outputs="$(DotnetDebToolDir)/$(DotnetDebToolConsumerProjectName)">
-
-    <Copy SourceFiles="$(MSBuildThisFileDirectory)/$(DotnetDebToolConsumerProjectName)"
-          DestinationFiles="$(DotnetDebToolDir)/$(DotnetDebToolConsumerProjectName)" />
-
-  </Target>
-
   <Target Name="TestDebuild">
       <Message Text="Don't remove this" />
 

build/package/Installer.DEB.targets

@@ -8,8 +8,7 @@
 
     <!-- dotnet deb-tool -->
     <PropertyGroup>
-      <DotnetDebToolConsumerProjectName>dotnet-deb-tool-consumer.csproj</DotnetDebToolConsumerProjectName>
+      <DotnetDebToolDir>$(MSBuildThisFileDirectory)/dotnet-deb-tool-consumer</DotnetDebToolDir>
-      <DotnetDebToolDir>$(IntermediateDirectory)/$(DotnetDebToolConsumerProjectName)</DotnetDebToolDir>
       <PackageTool>$(NuGetPackagesDir)/dotnet-deb-tool/$(DotnetDebToolVersion)/lib/netcoreapp2.0/tool/package_tool</PackageTool>
     </PropertyGroup>