patch 9.0.1584: not all meson files are recognized

Problem:    Not all meson files are recognized.
Solution:   Add "meson.options". (Liam Beguin, closes #12444)
diff --git a/src/version.c b/src/version.c
index 19fc37f..b23d066 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1584,
+/**/
     1583,
 /**/
     1582,