Add script to publish Goldilocks app for NativeAOT

[eerhardt]

When new developers want to test out their changes against the "Stage 1" Goldilocks app, they have to know exactly how to publish the app (PublishAot=true, TrimMode=full, StripSymbols=true, etc).

We should have a script next to the .csproj that devs can easily run locally to get the same app that is used in our benchmarks.

Note this could also be documentation, but a script feels nicer.

cc @mitchdenny @eiriktsarpalis

[sebastienros]

We have the README in the scenarios folder that references all the available benchmarks and sample command lines for each. Can you check if it should be documented there too?

[sebastienros]

https://github.com/aspnet/Benchmarks/blob/main/scenarios/README.md

[eerhardt]

@eiriktsarpalis and I chatted a bit about this.

Our thinking is that it would be best if we had the ability to point to a local build of dotnet/runtime and/or dotnet/aspnetcore. That way runtime and aspnet devs could easily test their changes changes by doing something like:

crank
  --config https://raw.githubusercontent.com/aspnet/Benchmarks/main/scenarios/goldilocks.benchmarks.yml
  --scenario stage1publishaot
  --profile aspnet-perf-win
  --chart
  --application.runtimePackage C:\git\runtime\artifacts\packages\Release\Shipping\runtime.win-x64.Microsoft.DotNet.ILCompiler.8.0.0-dev.nupkg

And crank would upload and use the runtime.win-x64.Microsoft.DotNet.ILCompiler.8.0.0-dev.nupkg that I locally built.

The same functionality for --[JOB].aspNetCorePackage.

Then we could just have a README that said:

1. Build your changes locally using ./build.cmd clr.aot+libs+packs -c release
2. Run the above crank command