Allow write's WriteTags typing to be generic

[dearsaturn]

Is your feature request related to a problem? Please describe.
Tags written to a file don't necessarily have to be what's specified in WriteTags. See this example in use today:

await exifTool.write(
  path.join(localFileStoragePath, filename),
  // @ts-ignore
  Attrib: 'something',
  ['-overwrite_original']
);

Attrib is not a tag mentioned in the WriteTags TypeScript typing, so we use @ts-ignore to get TS to ignore the typing error we are causing here, despite write allowing the tag to actually get written to the file.

Describe the solution you'd like
Give write a generic argument that extends WriteTags shape, e.g.:

await exifTool.write<WriteTags & {Attrib: string}>(
  path.join(localFileStoragePath, filename),
  Attrib: 'something',
  ['-overwrite_original']
);

Describe alternatives you've considered
An alternative to the above proposal would be not requiring the generic to extend WriteTags at all, but I'm not sure that's a great idea. (edited, forgot to fill this out)

Additional context
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[mceachen]

Thanks for the suggestion: I've added this to version 15.3.0 which I've just released.

[dearsaturn]

@mceachen thank you for the quick turnaround!