Implement retrieval of SMART data for MacOS

[jamesmarkchan]

Research Mac OS API/Tools for SMART:

• diskutil: macOS has the diskutil command-line utility, but its SMART reporting capabilities might be limited.
• smartctl (from smartmontools): This is widely available on macOS (e.g., via Homebrew). This is likely your primary method.
• IOKit Framework (Lower Level): For more advanced or direct access, you might look into the IOKit framework, but this would likely involve C/Objective-C bindings (e.g., using ctypes), which is more complex.

Choose a Method and Implement:

• Recommendation: smartctl via subprocess is the most practical choice.
• Parsing Output: Similar to Windows, parse the smartctl output.

Populate Benchmark Object: Map the retrieved SMART values to the Benchmark object.