cuda_device_info experiment using driver API
cuda_device_info experiment using driver API

This is more useful for debugging specific fetures, 
since it mirrors the API used by the PTX host stdlib.

Former-commit-id: 3f375b8161b06e6c51707a55ba02ae4302447917
darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide