added device implementation of COO->ELL, ELL->CSR and ELL->COO
added device implementation of COO->ELL, ELL->CSR and ELL->COO

cusplibrary/cusplibrary,sdalton1/cusplibrary,cusplibrary/cusplibrary,sdalton1/cusplibrary,sdalton1/cusplibrary,sdalton1/cusplibrary,cusplibrary/cusplibrary,cusplibrary/cusplibrary