EXSWHTEC-316 - Implement tests for Complex type functions (#356)

Change-Id: I67d5e1fd02c7e40319f135bc9ae5bbbde85b5ee7

catch/include/hip_test_defgroups.hh

@@ -193,3 +193,10 @@ THE SOFTWARE.
  * This section describes tests for the surface management functions of HIP runtime API.
  * @}
  */
+
+ /**
+ * @defgroup ComplexTest Complex type
+ * @{
+ * This section describes tests for the Complex type functions.
+ * @}
+ */