Update for 3.0

Author: rynowak

AspNet-GenerateStore.ps1

@@ -2,7 +2,10 @@
 <configuration>
   <packageSources>
     <clear />
-    <add key="dotnet core" value="https://dotnet.myget.org/F/dotnet-core/api/v3/index.json" />
+    <add key="aspnet" value="https://dotnetfeed.blob.core.windows.net/aspnet-aspnetcore/index.json" />
+    <add key="extensions" value="https://dotnetfeed.blob.core.windows.net/aspnet-extensions/index.json" />
+    <add key="ef" value="https://dotnetfeed.blob.core.windows.net/aspnet-entityframeworkcore/index.json" />
+    <add key="dotnet core" value="https://dotnetfeed.blob.core.windows.net/dotnet-core/index.json" />
     <add key="NuGet" value="https://api.nuget.org/v3/index.json" />
   </packageSources>
 </configuration>