Reconcile Dependencies.csproj & CopyLocalLockFileAssemblies

[andreiborodin]

In 0.8.2 I submitted a fix to ensure NuGet packages are copied over correctly for Dependencies.csproj project under .NET Standard 2.0. The fix was basically to set "CopyLocalLockFileAssemblies" to true.

This shouldn't be needed as MSBuildForUnity props file should already do this, so we need to understand what needs to be done here and do the correct fix.

This is the file:
https://github.com/microsoft/MSBuildForUnity/blob/master/Source/MSBuildTools.Unity/Packages/com.microsoft.msbuildforunity/Editor/ProjectGenerator/MSBuildTemplates/DependenciesProjectTemplate.g.props.template