Implemented message sink block for unit testing
diff --git a/swig/grgsm_swig.i b/swig/grgsm_swig.i
index 6189fee..5b7f458 100644
--- a/swig/grgsm_swig.i
+++ b/swig/grgsm_swig.i
@@ -28,6 +28,7 @@
#include "grgsm/misc_utils/burst_source.h"
#include "grgsm/misc_utils/burst_source_qa.h"
#include "grgsm/misc_utils/message_source.h"
+#include "grgsm/misc_utils/message_sink.h"
%}
@@ -75,3 +76,6 @@
GR_SWIG_BLOCK_MAGIC2(gsm, tmsi_dumper);
%include "grgsm/misc_utils/message_source.h"
GR_SWIG_BLOCK_MAGIC2(gsm, message_source);
+%include "grgsm/misc_utils/message_sink.h"
+GR_SWIG_BLOCK_MAGIC2(gsm, message_sink);
+