xinput: Added stub for XInputEnable.

dlls/xinput1_3/xinput1_3.spec

@@ -1,4 +1,4 @@
-@ stub XInputEnable #(long)
+@ stdcall XInputEnable(long)
 @ stub XInputSetState #(long ptr)
 @ stdcall XInputGetState(long ptr)
 @ stub XInputGetKeystroke #(long long ptr)

dlls/xinput1_3/xinput1_3_main.c

@@ -46,6 +46,15 @@ BOOL WINAPI DllMain(HINSTANCE inst, DWORD reason, LPVOID reserved)
     return TRUE;
 }
 
+void WINAPI XInputEnable(BOOL enable)
+{
+    /* Setting to false will stop messages from XInputSetState being sent
+    to the controllers. Setting to true will send the last vibration
+    value (sent to XInputSetState) to the controller and allow messages to
+    be sent */
+    FIXME("(%d) Stub!\n", enable);
+}
+
 DWORD WINAPI XInputGetState(DWORD dwUserIndex, XINPUT_STATE* pState)
 {
     FIXME("(%u %p)\n", dwUserIndex, pState);