Adding a version property with the CLI version and a private preview property to BundledVersions.

Author: livarcocc

build/MSBuildExtensions.targets

@@ -117,6 +117,8 @@
       <_NETCoreAppTargetFrameworkVersion>$(_NETCoreAppPackageVersion.Split('.')[0]).$(_NETCoreAppPackageVersion.Split('.')[1])</_NETCoreAppTargetFrameworkVersion>
       <_NETStandardTargetFrameworkVersion>$(_NETStandardLibraryPackageVersion.Split('.')[0]).$(_NETStandardLibraryPackageVersion.Split('.')[1])</_NETStandardTargetFrameworkVersion>
 
+      <_NETCoreSdkIsPreview Condition=" '$(DropSuffix)' == '' ">true</_NETCoreSdkIsPreview>
+
       <BundledVersionsPropsContent>
 <![CDATA[
 <!--
@@ -137,6 +139,8 @@ Copyright (c) .NET Foundation. All rights reserved.
     <BundledNETStandardTargetFrameworkVersion>$(_NETStandardTargetFrameworkVersion)</BundledNETStandardTargetFrameworkVersion>
     <BundledNETStandardPackageVersion>$(_NETStandardLibraryPackageVersion)</BundledNETStandardPackageVersion>
     <BundledNETCorePlatformsPackageVersion>$(_NETCorePlatformsPackageVersion)</BundledNETCorePlatformsPackageVersion>
+    <NETCoreSdkVersion>$(SdkVersion)</NETCoreSdkVersion>
+    <_NETCoreSdkIsPreview>$(_NETCoreSdkIsPreview)</_NETCoreSdkIsPreview>
   </PropertyGroup>
 </Project>
 ]]>