patch 9.0.2098: No filetype support for xcompose files

Problem:  No filetype support for xcompose files
Solution: Add filetype detection

closes: #13508

Signed-off-by: ObserverOfTime <chronobserver@disroot.org>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index 6cfd69f..9a0a6da 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -799,6 +799,7 @@
     wsh: ['file.wsf', 'file.wsc'],
     wsml: ['file.wsml'],
     wvdial: ['wvdial.conf', '.wvdialrc'],
+    xcompose: ['.XCompose', 'Compose'],
     xdefaults: ['.Xdefaults', '.Xpdefaults', '.Xresources', 'xdm-config', 'file.ad', '/Xresources/file', '/app-defaults/file', 'Xresources', 'Xresources-file', 'any/Xresources/file', 'any/app-defaults/file'],
     xf86conf: ['xorg.conf', 'xorg.conf-4'],
     xhtml: ['file.xhtml', 'file.xht'],
diff --git a/src/version.c b/src/version.c
index 0883cae..a4cc261 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2098,
+/**/
     2097,
 /**/
     2096,