patch 8.1.1190: has('vimscript-3') does not work

Problem:    has('vimscript-3') does not work.
Solution:   Add "vimscript-3" to the list of features.

src/version.c

@@ -771,6 +771,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1190,
 /**/
     1189,
 /**/