Move solution and projects to src

src/Ryujinx.Common/Pools/ThreadStaticArray.cs

@@ -0,0 +1,20 @@
+using System;
+
+namespace Ryujinx.Common.Pools
+{
+    public static class ThreadStaticArray<T>
+    {
+        [ThreadStatic]
+        private static T[] _array;
+
+        public static ref T[] Get()
+        {
+            if (_array == null)
+            {
+                _array = new T[1];
+            }
+
+            return ref _array;
+        }
+    }
+}