change to forward declare

Signed-off-by: byrcolin <[email protected]>

Author: byrcolin

Gems/XR/Code/Include/XR/XRInput.h

@@ -10,13 +10,14 @@
 
 #include <AzCore/Memory/SystemAllocator.h>
 #include <XR/XRBase.h>
-#include <XR/XRDevice.h>
 #include <XR/XRObject.h>
 
 namespace XR
 { 
     class Session;
     class Instance;
+    class Device;
+
     // This class will be responsible for creating XR::Input
     // which manage event queue or poll actions
     class Input