check_nvme: health check

[tomikkk]

nvme tool can display wear_leveling information, would you be able to include it in your check to indicate additional health information?

nvme smart-log-add /dev/nvme0
Additional Smart Log for NVME device:nvme0 namespace-id:ffffffff
key                               normalized raw
program_fail_count              : 100%       0
erase_fail_count                : 100%       0
wear_leveling                   :  56%       min: 5304, max: 5332, avg: 5317

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