patch 9.1.0453: filetype: rasi files are not recognized

Problem:  filetype: rasi files are not recognized
Solution: regonize '*.rasi' files as rasi filetype,
          include a filetype and syntax plugin
          (Pierrick Guillaume)

ported from: https://github.com/Fymyte/rasi.vim

closes: #14821

Signed-off-by: Pierrick Guillaume <pierguill@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index e5b8e45..8535699 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    453,
+/**/
     452,
 /**/
     451,