EXSWHTEC-224 - Test cases ID clean up and documentation for Device Management (#70)

- Test cases ID clean up and documentation for Device Management
- Adjust doxygen comments to fix bugs
- Adjust defgroup comments for test modules

catch/unit/graph/hipGraphKernelNodeSetParams.cc

@@ -171,9 +171,7 @@ static __global__ void ker_vec_sub(int* A, int* B) {
   A[i] = A[i] - B[i];
 }
 
-/**
- Internal class for creating nested graphs.
- */
+// Internal class for creating nested graphs.
 class GraphKernelNodeGetSetParam {
   const int N = 1024;
   size_t Nbytes;