Add support of AuthorizarionRequest/Response

ttcn/Http/LibItsHttp_TestSystem.ttcn

@@ -15,11 +15,6 @@ module LibItsHttp_TestSystem {
   import from LibCommon_Sync all;
   import from LibCommon_Time all;
   
-  // LibItsCommon
-  import from LibItsCommon_TestSystem all;
-  import from LibItsCommon_TypesAndValues all;
-  import from LibItsExternal_TypesAndValues all;
-  
   // LibItsHttp
   import from LibItsHttp_TypesAndValues all;