Feature/autofac tidyup (#2096)

* Move service config service back into shared .NET Framework Library

* Move Content files into shared folder. Make autoface load different assembilies depending on what framework is using it.

* Change my mind on what the shared module should be called. Common Module is too bland.

* DotNet4.SocksProxy is not yet publically .NET Standard. Revert to previous SocksWebProxy package.

* Check in unstaged change to test dependency injection setup.

src/Jackett.Console/Program.cs

@@ -222,6 +222,7 @@ namespace JackettConsole
                     JackettStartup.NoRestart = options.NoRestart;
                 }
 
+                Engine.BuildContainer(new WebApi2Module());
                 Engine.Server.Initalize();
                 Engine.Server.Start();
                 Engine.RunTime.Spin();