Add reference to Moq in unit test project

Author: benrr101

src/Directory.Packages.props

@@ -35,6 +35,7 @@
     <PackageVersion Include="Microsoft.SqlServer.Types" Version="160.1000.6" />
     <PackageVersion Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.19.5" />
     <PackageVersion Include="Microsoft.Win32.Registry" Version="5.0.0" />
+    <PackageVersion Include="Moq" Version="4.20.72" />
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageVersion Include="System.Data.Odbc" Version="9.0.9" />
     <PackageVersion Include="System.Security.Principal.Windows" Version="5.0.0" />

src/Microsoft.Data.SqlClient/tests/UnitTests/Microsoft.Data.SqlClient.UnitTests.csproj

@@ -11,7 +11,6 @@
   </PropertyGroup>
   <!-- Common references -->
   <ItemGroup>
-    <PackageReference Include="System.Configuration.ConfigurationManager" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" />
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Condition="$(TargetGroup) == 'netfx'">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
@@ -28,6 +27,8 @@
     </PackageReference>
     <PackageReference Include="Microsoft.DotNet.XUnitExtensions" />
     <PackageReference Include="Microsoft.SqlServer.Server" />
+    <PackageReference Include="Moq" />
+    <PackageReference Include="System.Configuration.ConfigurationManager" />
     <ProjectReference Include="$(TestsPath)tools\TDS\TDS.Servers\TDS.Servers.csproj" />
     <ProjectReference Include="$(TestsPath)tools\TDS\TDS.EndPoint\TDS.EndPoint.csproj" />
     <ProjectReference Include="$(TestsPath)tools\TDS\TDS\TDS.csproj" />