SSD - HDD Detection

[ralequi]

On #94 , @jackeichen shown that SSD detection should be inproved.

ie. NVMe can be HDD too, and the protocol says so:

In NVMe Spec 2.0 section 5.17.2.8， I/O Command Set Independent Identify Namespace is Mandatory. Add Here is what i found：

I cannot say that the above method is a common type, at least two challenges here:

1. nvme spec < 2.0 may not support CNS 08h;
2. I can't confirm if windows could support pass through CNS 08h;

But it is not a bad ideas to add it to the code.

Should investigate further how to obtain that property

[jackeichen]

A controller that supports namespaces that store user data on rotational media shall:

a) set the Rotational Media bit to ‘1’ in the NSFEAT field of the I/O Command Set Independent Identify Namespace data structure (refer to the NVM Command Set Specification) for any namespace that stores data on rotational media;
b) support the Rotational Media Information log page (refer to section 5.16.1.21);
c) support the Spinup Control feature (refer to section 5.27.1.22);
d) support Endurance Groups (refer to section 3.2.3); and
e) set the EG Rotational Media bit to ‘1’ in the EGFEAT field in the Endurance Group Information log page for each Endurance Group that stores data on rotational media.

If the NVM subsystem does not contain any Endurance Groups that store data on rotational media, then the Rotational Media Information Log should not be supported.

So we could check if disk support Rotational Media Information log page.