patch 8.0.0231: bracketed paste mode is not tested

Problem:    There are no tests for bracketed paste mode.
Solution:   Add a test.  Fix repeating with "normal .".
diff --git a/src/version.c b/src/version.c
index c7528b7..190a67d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    231,
+/**/
     230,
 /**/
     229,