patch 8.0.0740: cannot resize a terminal window by the command

Problem:    Cannot resize a terminal window by the command running in it.
Solution:   Add support for the window size escape sequence.  Make BS work.

src/version.c

@@ -769,6 +769,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    740,
 /**/
     739,
 /**/