Fix deleted reference

Author: Radhika Kashyap

src/ResourceManager/OperationalInsights/Commands.OperationalInsights.Test/Commands.OperationalInsights.Test.csproj

@@ -56,6 +56,10 @@
     <Reference Include="Microsoft.Azure.Management.OperationalInsights">
       <HintPath>..\..\..\packages\Microsoft.Azure.Management.OperationalInsights.0.9.0-preview\lib\net40\Microsoft.Azure.Management.OperationalInsights.dll</HintPath>
     </Reference>
+    <Reference Include="Microsoft.Azure.Management.Authorization">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\..\packages\Microsoft.Azure.Management.Authorization.0.19.1-preview\lib\net40\Microsoft.Azure.Management.Authorization.dll</HintPath>
+    </Reference>
     <Reference Include="Microsoft.Azure.Gallery">
       <HintPath>..\..\..\packages\Microsoft.Azure.Gallery.2.6.2-preview\lib\net40\Microsoft.Azure.Gallery.dll</HintPath>
     </Reference>