add nixos-factor

[zowoq]

• mem size
• threads
• platforms x86_64-v*
• system-features gccarch

web02 fixed: nix-community/nixos-facter@31e05dd

missing cores:

[zowoq@build04:~]$ sudo nix run nixpkgs#nixos-facter -- --hardware cpu
{
  "version": 1,
  "system": "aarch64-linux",
  "virtualisation": "none",
  "hardware": {
    "cpu": [
      {
        "architecture": "aarch64",
        "vendor_name": "ARM Limited",
        "family": 3,
        "model": 1,
        "stepping": 0,
        "features": [
          "fp",
          "asimd",
          "evtstrm",
          "aes",
          "pmull",
          "sha1",
          "sha2",
          "crc32",
          "atomics",
          "fphp",
          "asimdhp",
          "cpuid",
          "asimdrdm",
          "lrcpc",
          "dcpop",
          "asimddp"
        ],
        "bogo": 50,
        "physical_id": 0,
        "fpu": false,
        "fpu_exception": false,
        "write_protect": false,
        "address_sizes": {}
      }
    ]
  },
  "smbios": {}
}