patch 9.0.0931: MS-Windows: mouse column limited to 223

Problem:    MS-Windows: mouse column limited to 223.
Solution:   Use two bytes for each mouse coordinate.  Add the mouse position
            to scroll events. (Christopher Plewright, closes #11597)
diff --git a/src/version.c b/src/version.c
index a96b11a..9839553 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    931,
+/**/
     930,
 /**/
     929,