Allow for setting of smartctl device type

[andrewvaughan]

I usually test my drives via a USB SATA adapter before going through the hassle of taking my drive bays out. To do this, I have to use the -d sat argument with smartctl.

It would be useful to have an option to launch bht with the ability to pass configurations through to smartctl so that I can do this (for now, I literally just added -d sat anywhere smartctl was called in the script).

An option might be like:

bht --smartctl-params "-d sat" /dev/sdg

That way, you can allow the end-user to configure smartctl however they need... and should generally be a pretty quick fix to add in a variable for each of the smartctl calls in the script (set to blank, by default).