Simplify generated scripts to static script

[DavidBoike]

• Prepares for new major version 4.0
• Removes the code generation and MSBuild stuff, making the MsBuild package only create an error instructing the removal of the package. After release of 4.0, the MsBuild package stuff needs to be removed as well so that 4.0.0 is the last release.
• Adds the .ps1 script as a static resource of the package that will be added to the build output.
• Removes the C# script. Most customers should use Powershell, and this can cause issues for customers when a code file dropped in build output directories anyway, as it sometimes runs afoul of security infrastructure.

[bording]

I pushed up some tweaks and left some comments.

It appears that something caused the file permissions to be changed. Those should be reverted.

Also, the API approval test needs to be updated.

[bording]

Is CreateNSBPerfCounters.ps1 the name of the file that the old generation code would create?

[DavidBoike]

Yep, now that we're bumping the major we could change it though.

[bording]

I'll leave that up to you.