patch 9.1.0840: filetype: idris2 files are not recognized

Problem:  filetype: idris2 files are not recognized
Solution: detect '*.idr' files as idris2, '*.lidr' files as lidris2
          and '*.ipkg' files as ipkg filetype (Serhii Khoma)

closes: #15987

Signed-off-by: Serhii Khoma <srghma@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index f13567f..d00d280 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    840,
+/**/
     839,
 /**/
     838,