Upgrade TensorFlow.Keras to v0.2.0.

Author: Oceania2018

src/TensorFlowNET.Examples.FSharp/TensorFlowNET.Examples.FSharp.fsproj

@@ -20,7 +20,7 @@
     <PackageReference Include="SharpCV" Version="0.6.0" />
     <PackageReference Include="SharpZipLib" Version="1.3.0" />
     <PackageReference Include="System.Drawing.Common" Version="4.7.0" />
-    <PackageReference Include="TensorFlow.Keras" Version="0.1.0" />
+    <PackageReference Include="TensorFlow.Keras" Version="0.2.0" />
   </ItemGroup>
 
   <ItemGroup>

src/TensorFlowNET.Examples/TensorFlowNET.Examples.csproj

@@ -45,7 +45,6 @@
     <PackageReference Include="SharpCV" Version="0.6.0" />
     <PackageReference Include="System.Drawing.Common" Version="4.7.0" />
     <PackageReference Include="TensorFlow.Keras" Version="0.2.0" />
-    <PackageReference Include="TensorFlow.NET" Version="0.31.0" />
   </ItemGroup>
 
   <ItemGroup>