patch 8.0.0744: terminal window does not use a pty

Problem:    A terminal window uses pipes instead of a pty.
Solution:   Add pty support.

src/version.c

@@ -769,6 +769,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    744,
 /**/
     743,
 /**/