Make use of refactured FrameworkDirectoryPointer class.

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

diff --git a/core b/core
index c9f17eb1b256ba6b2ca14e0d0cecbbde745aca95..a9bcdaef9d5ae0b4109551a12ae3dcac9c862e8c 160000 (submodule)
--- a/core
+++ b/core
@@ -1 +1 @@
-Subproject commit c9f17eb1b256ba6b2ca14e0d0cecbbde745aca95
+Subproject commit a9bcdaef9d5ae0b4109551a12ae3dcac9c862e8c