patch 8.0.1340: MS-Windows: cannot build GUI without IME

Problem:    MS-Windows: cannot build GUI without IME.
Solution:   Define im_get_status() and im_set_active() when IME is not used.

src/version.c

@@ -771,6 +771,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1340,
 /**/
     1339,
 /**/