dia2gsup: Introduce initial testsuite

This testsuite contains 1 working test so far.

Related: OS#5757
Change-Id: Ia3db9fd62249777cd7c63f6c4af1568c79468728
diff --git a/Makefile b/Makefile
index c399714..1d119d1 100644
--- a/Makefile
+++ b/Makefile
@@ -19,6 +19,7 @@
 	bts \
 	cbc \
 	ccid \
+	dia2gsup \
 	fr \
 	fr-net \
 	gbproxy \