[7] Multi disk info service WIP
[7] Fixed technical id retrieval
[] Typo
[7] WIP: coding multi disk smart service
[7] Changed gateway service to handle many commands to SSH
[7] Added big brother test for multi disk smart service
[] Removed wrong comment
[7] Handled wrong id list parameter
[9] Added caching to disk smart multi service
[7] Handled unknown disk case to 404
[9] Updated cache cleaner
[7] Updated mock to return SMART info for disks 1 to 5
[7] Fixed multi API output to match single one
[7] Updated mock to return different temperature values for disks 1 to 5
[7] Updated description
[7] Now produces global status according to SMART item statuses
[] Enhanced documentation
[7] Updated description
[7] Done setting status of SMART items: health status, write error count, read error count
[7] return status for 'Media Wearout Indicator' item.