Removed NioTSO client and server

- NioTSO client isn't needed because we're using RayLib
- Added FreeSO's API server to handle most backend operations

server/tso.common/Utils/CollectionUtils.cs

@@ -0,0 +1,51 @@
+using System;
+using System.Collections.Generic;
+
+namespace FSO.Client.Utils
+{
+    public static class CollectionUtils
+    {
+        public static void Shuffle<T>(this IList<T> list)
+        {
+            Random rng = new Random();
+            int n = list.Count;
+            while (n > 1)
+            {
+                n--;
+                int k = rng.Next(n + 1);
+                T value = list[k];
+                list[k] = list[n];
+                list[n] = value;
+            }
+        }
+
+        public static IEnumerable<TResult> Select<TSource, TResult>(this Array items, Func<TSource, TResult> converter)
+        {
+            var result = new List<TResult>();
+            foreach (var item in items)
+            {
+                result.Add(converter((TSource)item));
+            }
+            return result;
+        }
+
+
+        public static Dictionary<TKey, TValue> Clone<TKey, TValue>(Dictionary<TKey, TValue> input)
+        {
+            var result = new Dictionary<TKey, TValue>();
+            foreach (var val in input)
+            {
+                result.Add(val.Key, val.Value);
+            }
+            return result;
+        }
+
+
+        private static Random RAND = new Random();
+        public static T RandomItem<T>(this T[] items)
+        {
+            var index = RAND.Next(items.Length);
+            return items[index];
+        }
+    }
+}