reworked CSR (scalar) SpMV kernel
reworked CSR (scalar) SpMV kernel

baiyunping333/cusp-library,gshashidhar125/cusp-library,gshashidhar125/cusp-library,victordion/cusp-library,tectronics/cusp-library,baiyunping333/cusp-library,gshashidhar125/cusp-library,tectronics/cusp-library,victordion/cusp-library,baiyunping333/cusp-library,victordion/cusp-library,gshashidhar125/cusp-library,vkirangoud/cusp-library,vkirangoud/cusp-library,tectronics/cusp-library,vkirangoud/cusp-library,baiyunping333/cusp-library,victordion/cusp-library,tectronics/cusp-library,vkirangoud/cusp-library