Move Attestation.Autorest to main (#19524)

* Move Attestation to main

* Update ChangeLog.md

Co-authored-by: azure-powershell-bot <[email protected]>

Author: BethanyZhou

src/Attestation/Attestation.Autorest/Az.Attestation.csproj

@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <PsModuleName>Attestation</PsModuleName>
+    <PsRootModuleName>Attestation</PsRootModuleName>
+    <PsModuleFolder>Attestation.Autorest</PsModuleFolder>
+  </PropertyGroup>
+
+  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory).., build.proj))\src\Az.autorest.hybrid.props" />
+  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory).., build.proj))\src\Az.Post.props" />
+</Project>