Move solution and projects to src

src/Ryujinx.Graphics.Host1x/Devices.cs

@@ -0,0 +1,32 @@
+using Ryujinx.Graphics.Device;
+using System;
+using System.Collections.Generic;
+
+namespace Ryujinx.Graphics.Host1x
+{
+    class Devices : IDisposable
+    {
+        private readonly Dictionary<ClassId, IDeviceState> _devices = new Dictionary<ClassId, IDeviceState>();
+
+        public void RegisterDevice(ClassId classId, IDeviceState device)
+        {
+            _devices[classId] = device;
+        }
+
+        public IDeviceState GetDevice(ClassId classId)
+        {
+            return _devices.TryGetValue(classId, out IDeviceState device) ? device : null;
+        }
+
+        public void Dispose()
+        {
+            foreach (var device in _devices.Values)
+            {
+                if (device is ThiDevice thi)
+                {
+                    thi.Dispose();
+                }
+            }
+        }
+    }
+}