- added generic requests

- default version increased to 3.0

SDK/Connection/ConnectionOptions.cs

@@ -4,7 +4,7 @@
     public class ConnectionOptions
     {
         public const string VERSION_2 = "v2";
-        public const string VERSION_3 = "v3";
+        public const string VERSION_3 = "v3.0";
 
         private string url;
         private string token;

SDK/Connection/DevkitConnector.cs

 using SDK.Exceptions;
 using System;
+using System.Net;
 using System.Net.Http;
 using System.Text;
 using System.Text.Json;
@@ -32,6 +33,7 @@ namespace SDK
         {
             this.connectionOptions = connectionOptions;
             this.httpClient = httpClient;
+            this.httpClient.DefaultRequestVersion = HttpVersion.Version30;
             httpClient.BaseAddress = new Uri(connectionOptions.Url + "/" + connectionOptions.Version + "/");
 
             ResetHttpClientHeaders();