[Eng] Switch One Branch Nuget.Config (#25814)

* add script for nuget auth

* update

Author: VeryEarly

tools/NugetAuth/OneBranchNuget.Config

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <packageSources>
+    <clear />
+    <!-- Do not add any additional feeds if new packages are needed they need to come from nuget.org or our azure-sdk-for-net DevOps feed -->
+    <add key="azure-powershell-onebranch" value="https://pkgs.dev.azure.com/azclitools/public/_packaging/azure-powershell-onebranch/nuget/v3/index.json" />
+  </packageSources>
+  <disabledPackageSources>
+    <clear />
+  </disabledPackageSources>
+</configuration>

tools/NugetAuth/ReplaceOneBranchConfig.ps1

@@ -0,0 +1,4 @@
+$oneBranchConfigPath = Join-Path $PSScriptRoot 'OneBranchNuget.Config'
+$devConfigPath = Join-Path ($PSScriptRoot | Split-path -Parent | Split-path -Parent) 'Nuget.Config'
+
+Get-Content $oneBranchConfigPath -Raw | Set-Content $devConfigPath -Force

tools/NugetAuth/SetNugetCredentialProvider.ps1

@@ -0,0 +1,10 @@
+$scriptPath = Join-Path $PSScriptRoot installcredprovider.ps1
+New-Item -ItemType File -Path $scriptPath
+(Invoke-WebRequest -Uri "https://raw.githubusercontent.com/microsoft/artifacts-credprovider/master/helpers/installcredprovider.ps1").Content | Set-Content $scriptPath -force
+
+. $scriptPath -AddNetfx -Force
+
+Remove-Item $scriptPath -Force
+
+$configScriptPath = Join-Path $PSScriptRoot 'ReplaceOneBranchConfig.ps1'
+. $configScriptPath