Install Paket as dotnet tool

[nojaf]

Since the new alfa of Paket, we can install it as dotnet global tool.

I've made a little sample script where I first install Paket and later use the existing module.

Target.create "InstallPaket" (fun _ ->
    if not (File.exists paketExe) then
        DotNet.exec id "tool" "install --tool-path \".paket\" Paket --version 5.182.0-alpha001 --add-source https://api.nuget.org/v3/index.json"
        |> ignore
    else
        printfn "paket already installed"
)

When running fake.ps1 Build (or fake.sh Build) it adds paket, downloads dependencies and builds the code. This seems like a nice setup for a CI build.

Could we benefit from something similar in the Fake.DotNet.DotNet or Fake.Dotnet.Paket module?

[matthid]

/cc @forki @enricosada

[matthid]

I'd love to see a PR for this, but I have not planned to do it myself.