feature: api client package

[drew-harris]

Please indicate what issue this PR is related to and @ any maintainers who are relevant

[drew-harris]

Fields are now renamed so that

const test = await trieve.fetch("/api/chunk", "post", {
  datasetId: "c65a2dd7-298e-48e6-ac90-e336ccbbe74f",
  trDataset: "c65a2dd7-298e-48e6-ac90-e336ccbbe74f",
  requestBody: {
    chunk_html: "hello"
  }
});

becomes just

const test = await trieve.fetch("/api/chunk", "post", {
  datasetId: "c65a2dd7-298e-48e6-ac90-e336ccbbe74f",
  data: {
    chunk_html: "hello"
  }
});

[drew-harris]

Same for organization id