feature add: provide partner/CNA list in structured format

[zmanion]

It would be useful to have the partner/CNA list in some structured format, like a JSON file with a basic schema.

It is possible to obtain the full list by vistiing https://www.cve.org/PartnerInformation/ListofPartners and clicking the Show: All dropdown. The CNA list is already JSON in a .js resource on the Partners page. Will need to handle some single quote escaping. Hacked up example:

$ jq .[302] cnas.json 
{
  "shortName": "Google_Devices",
  "cnaID": "CNA-2023-0040",
  "organizationName": "Google Devices",
  "scope": "Google Devices - Pixel, Nest, and Chromecast",
  "contact": [
    {
      "email": [
        {
          "label": "Email",
          "emailAddr": "dsap-vuln-management@google.com"
        }
      ],
      "contact": [],
      "form": []
    }
  ],
  "disclosurePolicy": [
    {
      "label": "Policy",
      "language": "",
      "url": "https://support.google.com/product-documentation/answer/13658251?hl=en&ref_topic=12974021&sjid=11464995960873540884-NA"
    }
  ],
  "securityAdvisories": {
    "alerts": [],
    "advisories": [
      {
        "label": "Nest Advisories",
        "url": "https://support.google.com/product-documentation/topic/12974021?hl=en&ref_topic=10123615&sjid=5419128013624043298-NA"
      },
      {
        "label": "Pixel Advisories",
        "url": "https://source.android.com/docs/security/bulletin/pixel"
      },
      {
        "label": "Chromecast Advisories",
        "url": "https://source.android.com/docs/security/bulletin/chromecast"
      }
    ]
  },
  "resources": [],
  "CNA": {
    "isRoot": false,
    "root": {
      "shortName": "Google",
      "organizationName": "Google LLC"
    },
    "type": [
      "Vendor"
    ],
    "TLR": {
      "shortName": "mitre",
      "organizationName": "MITRE Corporation"
    },
    "roles": [
      {
        "helpText": "",
        "role": "CNA"
      }
    ]
  },
  "country": "USA"
}