Start UpperTester changes

ttcn/DENM/LibItsDenm_EncdecDeclarations.ttcn

 module LibItsDenm_EncdecDeclarations {
     
+    import from LibItsDenm_TypesAndValues all;
     import from LibItsDenm_TestSystem all;
     import from DENM_PDU_Descriptions language "ASN.1:1997" all;
     
@@ -18,4 +19,7 @@ module LibItsDenm_EncdecDeclarations {
     external function fx_dec_DENM (inout bitstring b, out DENM p) return integer
         with {extension "prototype(sliding) decode(PER)"}    
 
+    external function fx_enc_UtDenmInitialize (UtDenmInitialize p) return bitstring
+        with {extension "prototype(convert) encode(UpperTester)"}
+    
 } // End of module LibItsDenm_EncdecDeclarations