add ssd and smart regression tests

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>

test/disk_tests/ssd_smart/sdb_smart

@@ -0,0 +1,41 @@
+smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.4.21-1-pve] (local build)
+Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
+
+=== START OF READ SMART DATA SECTION ===
+SMART overall-health self-assessment test result: PASSED
+
+SMART Attributes Data Structure revision number: 1
+Vendor Specific SMART Attributes with Thresholds:
+ID# ATTRIBUTE_NAME          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
+  5 Reallocated_Sector_Ct   -O--CK   100   100   000    -    0
+  9 Power_On_Hours          -O--CK   100   100   000    -    1259
+ 12 Power_Cycle_Count       -O--CK   100   100   000    -    191
+170 Available_Reservd_Space PO--CK   100   100   010    -    0
+171 Program_Fail_Count      -O--CK   100   100   000    -    0
+172 Erase_Fail_Count        -O--CK   100   100   000    -    0
+174 Unsafe_Shutdown_Count   -O--CK   100   100   000    -    164
+175 Power_Loss_Cap_Test     PO--CK   100   100   010    -    5670 (1 343)
+183 SATA_Downshift_Count    -O--CK   100   100   000    -    0
+184 End-to-End_Error        PO--CK   100   100   090    -    0
+187 Reported_Uncorrect      -O--CK   100   100   000    -    0
+190 Temperature_Case        -O---K   072   071   000    -    28 (Min/Max 21/30)
+192 Unsafe_Shutdown_Count   -O--CK   100   100   000    -    164
+194 Temperature_Internal    -O---K   100   100   000    -    28
+197 Current_Pending_Sector  -O--C-   100   100   000    -    0
+199 CRC_Error_Count         -OSRCK   100   100   000    -    0
+225 Host_Writes_32MiB       -O--CK   100   100   000    -    296600
+226 Workld_Media_Wear_Indic -O--CK   100   100   000    -    3747
+227 Workld_Host_Reads_Perc  -O--CK   100   100   000    -    0
+228 Workload_Minutes        -O--CK   100   100   000    -    75111
+232 Available_Reservd_Space PO--CK   100   100   010    -    0
+233 Media_Wearout_Indicator -O--CK   097   097   000    -    0
+234 Thermal_Throttle        -O--CK   100   100   000    -    0/0
+241 Host_Writes_32MiB       -O--CK   100   100   000    -    296600
+242 Host_Reads_32MiB        -O--CK   100   100   000    -    1207
+                            ||||||_ K auto-keep
+                            |||||__ C event count
+                            ||||___ R error rate
+                            |||____ S speed/performance
+                            ||_____ O updated online
+                            |______ P prefailure warning
+