[Kusto] Update to 2020-09-18 client (Azure#16139)

* new client

* Update Microsoft.Azure.Management.Kusto.csproj

eng/mgmt/mgmtmetadata/azure-kusto_resource-manager.txt

@@ -3,12 +3,12 @@ AutoRest installed successfully.
 Commencing code generation
 Generating CSharp code
 Executing AutoRest command
-cmd.exe /c autorest.cmd https://github.com/Azure/azure-rest-api-specs/blob/master/specification/azure-kusto/resource-manager/readme.md --csharp --version=v2 --reflect-api-versions --csharp-sdks-folder=C:\Source\azure-sdk-for-net\sdk
-2020-07-13 11:49:52 UTC
+cmd.exe /c autorest.cmd https://github.com/Azure/azure-rest-api-specs/blob/master/specification/azure-kusto/resource-manager/readme.md --csharp --version=v2 --reflect-api-versions --csharp-sdks-folder=C:\Users\astauben\Desktop\c\azure-sdk-for-net\sdk
+2020-10-19 14:07:58 UTC
 Azure-rest-api-specs repository information
 GitHub fork: Azure
 Branch:      master
-Commit:      7f1b65db7aa74b4668d000eb27c1c0ffd8d91334
+Commit:      2cb0bc5f2c5afc6a5199ec6c66da252173741337
 AutoRest information
 Requested version: v2
 Bootstrapper version:    autorest@2.0.4413

sdk/kusto/Microsoft.Azure.Management.Kusto/AzSdk.RP.props

@@ -1,7 +1,7 @@
 <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <!--This file and it's contents are updated at build time moving or editing might result in build failure. Take due deligence while editing this file-->
   <PropertyGroup>
-    <AzureApiTag>Kusto_2020-06-14;</AzureApiTag>
+    <AzureApiTag>Kusto_2020-09-18;</AzureApiTag>
     <PackageTags>$(PackageTags);$(CommonTags);$(AzureApiTag);</PackageTags>
   </PropertyGroup>
 </Project>