Optimize twin report (#19)

Author: Ellerbach

Azure.Devices.DeviceClient/Azure.Devices.DeviceClient.nfproj

@@ -59,7 +59,7 @@
       <Private>True</Private>
       <SpecificVersion>True</SpecificVersion>
     </Reference>
-    <Reference Include="nanoFramework.Json">
+    <Reference Include="nanoFramework.Json, Version=2.1.1.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\packages\nanoFramework.Json.2.1.1-preview.6\lib\nanoFramework.Json.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.M2Mqtt, Version=5.0.2.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">