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/msc/MSC_Tests.ttcn b/msc/MSC_Tests.ttcn
index 1f8d8d4..7f993c4 100644
--- a/msc/MSC_Tests.ttcn
+++ b/msc/MSC_Tests.ttcn
@@ -47,8 +47,9 @@
 import from MGCP_Templates all;
 import from SDP_Types all;
 
-import from GSUP_Emulation all;
 import from GSUP_Types all;
+import from GSUP_Templates all;
+import from GSUP_Emulation all;
 import from IPA_Emulation all;
 
 import from BSSAP_Types all;