add response object

[jchartrand]

Returns a response object from the load method, like so:

[
  {
    name: 'DCC Sandbox Registry',
    url: 'https://digitalcredentials.github.io/sandbox-registry/registry.json',
    loaded: true
  },
  {
    name: 'DCC Community Registry',
    url: 'https://digitalcredentials.github.io/community-registry/registry.json',
    loaded: true
  }
]

and when a call fails:

[
  {
    name: 'DCC Sandbox Registry',
    url: 'https://digitalcredentials.github.io/sandbox-registry/registry.json',
    loaded: true
  },
  {
    name: 'DCC Community Registry',
    url: 'https://digitalcredentials.github.io/community-registry/reggggistry.json',
    loaded: false,
    error: HTTPError: Request failed with status code 404 Not Found: GET https://digitalcredentials.github.io/community-registry/reggggistry.json
        at function_ (file:///Users/jameschartrand/Documents/github/dcc/issuer-registry-client/node_modules/ky/source/core/Ky.ts:56:17)
        at processTicksAndRejections (node:internal/process/task_queues:95:5)
        at async Ky._retry (file:///Users/jameschartrand/Documents/github/dcc/issuer-registry-client/node_modules/ky/source/core/Ky.ts:258:11)
        at async _handleResponse (/Users/jameschartrand/Documents/github/dcc/issuer-registry-client/node_modules/@digitalcredentials/http-client/dist/httpClient.js:104:16)
        at async /Users/jameschartrand/Documents/github/dcc/issuer-registry-client/src/index.ts:108:31
        at async Promise.all (index 1)
        at async RegistryClient.load (/Users/jameschartrand/Documents/github/dcc/issuer-registry-client/src/index.ts:104:5)
        at async Context.<anonymous> (/Users/jameschartrand/Documents/github/dcc/issuer-registry-client/test/registryClient.spec.ts:56:20) {
      response: [Response],
      request: [Request],
      options: [Object],
      requestUrl: 'https://digitalcredentials.github.io/community-registry/reggggistry.json',
      status: 404
    }
  }
]

[dmitrizagidulin]

👍 great work on this. (also, very much appreciate the unit testing!)