Reverted path to configuration.json for API gateways.

src/ApiGateways/ApiGw-Base/Program.cs

@@ -22,7 +22,7 @@ namespace OcelotApiGw
         {
             IWebHostBuilder builder = WebHost.CreateDefaultBuilder(args);
             builder.ConfigureServices(s => s.AddSingleton(builder))
-                .ConfigureAppConfiguration(ic => ic.AddJsonFile("appsettings.json"))
+                .ConfigureAppConfiguration(ic => ic.AddJsonFile(Path.Combine("configuration", "configuration.json")))
                 .UseStartup<Startup>();
             IWebHost host = builder.Build();
             return host;