patch 8.0.0094

Problem:    When vimrun.exe is not found the error message is not properly
            encoded.
Solution:   Use utf-16 and MessageBoxW(). (Ken Takata)

src/version.c

@@ -764,6 +764,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    94,
 /**/
     93,
 /**/