Move templates from GSUP_Types.ttcn to GSUP_Templates.ttcn

Follow similar structure that we have for other protocols.

Change-Id: I54cc8c99d1e91d57c3d5a92f6529ef2055e9d4ed
diff --git a/dia2gsup/DIA2GSUP_Tests.ttcn b/dia2gsup/DIA2GSUP_Tests.ttcn
index 6e59460..6d1828f 100644
--- a/dia2gsup/DIA2GSUP_Tests.ttcn
+++ b/dia2gsup/DIA2GSUP_Tests.ttcn
@@ -6,8 +6,9 @@
 import from L3_Common all;
 
 import from IPA_Emulation all;
-import from GSUP_Emulation all;
 import from GSUP_Types all;
+import from GSUP_Templates all;
+import from GSUP_Emulation all;
 
 import from DIAMETER_Types all;
 import from DIAMETER_Templates all;