(feature, ts): Add inlineFileProperties configuration

[amckinney]

This adds the inlineFileProperties configuration to support generating file upload properties as in-lined request properties (instead of positional parameters). Simply configure the following:

- name: fernapi/fern-typscript-node-sdk
  version: 0.19.0
  ...
  config:
    inlineFileProperties: true

The generated code will nested the file properties in the in-lined request like so:

/**
  * @param {Acme.MyRequest} request
  * @param {Service.RequestOptions} requestOptions - Request-specific configuration.
  *
  * @example
  *     await client.service.post({
  *        file: fs.createReadStream("/path/to/your/file"),
  *        fileList: [fs.createReadStream("/path/to/your/file")]
  *     })
  */
public async post(
    request: Acme.MyRequest,
    requestOptions?: Service.RequestOptions
): Promise<void> {
  ...
}

[dsinghvi]

@amckinney this looks great