PCIe -> SATA and NVMe work as of 0.6.59

[pfeerick]

I bit the bullet and got a Samsung 960 EVO M.2 drive, which works OOTB with 0.7.6 (as it's the current pre-release build) with the stock 4.4 kernel: 

Full results are here (https://gist.github.com/pfeerick/c74d307...64dcb6b21e).

Code:

                                                     random    random
     kB  reclen    write  rewrite    read    reread    read     write
 102400       4    38433    79302   105834   102662    35497    77236
 102400      16   136010   245212   285828   287224   129220   229761
 102400     512   817004   742109   459952   457776   418119   543264
 102400    1024   513989   610949   475218   484782   457843   604607
 102400   16384  1048832   987167  1056497  1089687  1097510  1146656

I'll update the gist and this post later with the SATA results on the same kernel, and then the current mainline kernel for both on the same build for comparison.