patch 9.0.0887: cannot easily try out what codes various keys produce

Problem:    Cannot easily try out what codes various keys produce.
Solution:   Add a script to gather key code information, with an initial list
            of codes to compare with.

src/version.c

@@ -695,6 +695,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    887,
 /**/
     886,
 /**/