Added FSharp 4.0.0 to DapperTests NET40 (required at runtime)

Tests/DapperTests NET40.csproj

@@ -47,6 +47,10 @@
     <Reference Include="EntityFramework.SqlServer">
       <HintPath>..\packages\EntityFramework.6.1.0\lib\net45\EntityFramework.SqlServer.dll</HintPath>
     </Reference>
+    <Reference Include="FSharp.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\packages\FSharp.Core.4.0.0\lib\FSharp.Core.dll</HintPath>
+    </Reference>
     <Reference Include="FSharp.PowerPack, Version=2.0.0.0, Culture=neutral, PublicKeyToken=a19089b1c74d0809, processorArchitecture=MSIL">
       <Private>True</Private>
       <HintPath>..\packages\FSPowerPack.Community.2.0.0.0\Lib\Net40\FSharp.PowerPack.dll</HintPath>

Tests/packages.config

 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="EntityFramework" version="6.1.0" targetFramework="net45" />
+  <package id="FSharp.Core" version="4.0.0" targetFramework="net45" />
   <package id="FSPowerPack.Community" version="2.0.0.0" />
   <package id="Npgsql" version="2.0.11" />
   <package id="SqlServerCompact" version="4.0.8482.1" />