Function askUploadConsent

askUploadConsent(
    host: Pick<KernlHost, "presentConsent">,
    applet: AppletIdentity | undefined,
    details: UploadDetails,
): Promise<boolean>
Put an upload to the person through the host's consent prompt. An applet the shell cannot name is refused without asking.
Parameters
- host: Pick<KernlHost, "presentConsent">
  Supplies presentConsent.
- applet: AppletIdentity | undefined
  The asking applet's identity, if the shell knows it.
- details: UploadDetails
  The file and its servers.
Returns Promise<boolean>
Whether the person allowed it.
Example
```
ask: (windowId, details) => askUploadConsent(host, identityOf(windowId), details);
```