patch 8.1.2042: the evalfunc.c file is too big

Problem:    The evalfunc.c file is too big.
Solution:   Move getchar() and parse_queued_messages() to getchar.c.

src/version.c

@@ -757,6 +757,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2042,
 /**/
     2041,
 /**/