patch 9.0.1797: Vimball/Visual Basic filetype detection conflict

Problem:  Vimball/Visual Basic filetype detection conflict
Solution: runtime(vb): Improve Vimball and Visual Basic detection logic

Only run Vimball Archiver's BufEnter autocommand on Vimball archives.
Fixes #2694.

closes: #12899

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Doug Kearns <dougkearns@gmail.com>
diff --git a/src/version.c b/src/version.c
index a41fc69..bcba099 100644
--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1797,
+/**/
     1796,
 /**/
     1795,