Updated 'core'.

Signed-off-by: Roland Haeder <roland@mxchange.org>

diff --git a/core b/core
index 867042ee4793d38bd778717192f4f6cd727b8e19..23aa45d4a6205e26184190ca446316d06a9b4648 160000 (submodule)
--- a/core
+++ b/core
@@ -1 +1 @@
-Subproject commit 867042ee4793d38bd778717192f4f6cd727b8e19
+Subproject commit 23aa45d4a6205e26184190ca446316d06a9b4648