Implement IIrSensorServer GetIrsensorSharedMemoryHandle (#664)

* Implement IIrSensorServer GetIrsensorSharedMemoryHandle

Resolves #620

* Set _irsSharedMem

Ryujinx.HLE/HOS/Services/ServiceFactory.cs

@@ -112,7 +112,7 @@ namespace Ryujinx.HLE.HOS.Services
                     return new IHidServer(system);
 
                 case "irs":
-                    return new IIrSensorServer();
+                    return new IIrSensorServer(system.IirsSharedMem);
 
                 case "ldr:ro":
                     return new IRoInterface();