Fixed vectorProduct test. Updated TODO.

    using namespace TNL::Containers;

    using namespace TNL::Containers::Algorithms;

    Vector< int, Devices::Host, int > inVector;

    typedef typename Matrix::RealType RealType;

    typedef typename Matrix::DeviceType DeviceType;

    typedef typename Matrix::IndexType IndexType;

    Vector< RealType, DeviceType, IndexType > inVector;

    inVector.setSize( 4 );

    for( int i = 0; i < inVector.getSize(); i++ )        

        inVector.setElement( i, 2 );

    Vector< int, Devices::Host, int > outVector;  

    Vector< RealType, DeviceType, IndexType > outVector;  

    outVector.setSize( 5 );

    for( int j = 0; j < outVector.getSize(); j++ )

        outVector.setElement( j, 0 );

#ifdef HAVE_CUDA

TEST( SparseMatrixTest, CSR_vectorProductTest_Cuda )

{

//    test_VectorProduct< CSR_cuda_int >();

    bool testRan = false;

    EXPECT_TRUE( testRan );

    std::cout << "\nTEST DID NOT RUN. NOT WORKING.\n\n";

    std::cout << "If launched, this test throws the following message: \n";

    std::cout << "      terminate called after throwing an instance of 'TNL::Exceptions::CudaRuntimeError'\n";

    std::cout << "        what():  CUDA ERROR 77 (cudaErrorIllegalAddress): an illegal memory access was encountered.\n";

    std::cout << "      Source: line 57 in /home/lukas/tnl-dev/src/TNL/Containers/Algorithms/ArrayOperationsCuda_impl.h: an illegal memory access was encountered\n";

    std::cout << "      [1]    7238 abort (core dumped)  ./SparseMatrixTest-dbg\n\n";

    test_VectorProduct< CSR_cuda_int >();

//    bool testRan = false;

//    EXPECT_TRUE( testRan );

//    std::cout << "\nTEST DID NOT RUN. NOT WORKING.\n\n";

//    std::cout << "If launched, this test throws the following message: \n";

//    std::cout << "      terminate called after throwing an instance of 'TNL::Exceptions::CudaRuntimeError'\n";

//    std::cout << "        what():  CUDA ERROR 77 (cudaErrorIllegalAddress): an illegal memory access was encountered.\n";

//    std::cout << "      Source: line 57 in /home/lukas/tnl-dev/src/TNL/Containers/Algorithms/ArrayOperationsCuda_impl.h: an illegal memory access was encountered\n";

//    std::cout << "      [1]    7238 abort (core dumped)  ./SparseMatrixTest-dbg\n\n";

}

#endif