add some server scripts

enable-smart.sh - enables SMART of devices (to get some useful information later on)
hddtemps.sh - reads temperature directly from SMART controler (because hddtemp program might wakeup device from spin-down)
auto-suspend-disks.sh - my SATA controler is too stupid to respect hdparm -S spin-down option. so manually track IO activity (using iostat) and send device to sleep if it is idle for a some time (using the "force" with hdparm -y)