enhanced-img: Support configuring vite-imagetools (e.g. `removeMetadata=false`)

Describe the problem

I would like to keep the exif metadata information stored in my images, but when using enhanced-img, these are removed by-default.

vite-imagetools supports removeMetadata which is true by default (which I think is a good default).

Describe the proposed solution

accept a list of options in
https://github.com/sveltejs/kit/blob/42c8bf390a14ff18f604ae444d0f7a15c76ce911/packages/enhanced-img/src/index.js#L9

that might be passed into vite-imagetools:
https://github.com/sveltejs/kit/blob/42c8bf390a14ff18f604ae444d0f7a15c76ce911/packages/enhanced-img/src/index.js#L64-L66

You might not want to just accept all options and just blindly pass them to vite-imagetool, but maybe a list of sensible parameters might make sense.

Alternatives considered

I couldn't find any alternative while sticking with sveltejs/enhanced-img.
I'd need to switch to another package

Importance

nice to have

Additional Information

Remeber to delete node_modules/.cache/imagetools, when testing the removeMetadata option.

Start in packages/enhanced-img/src/index.js, especially the option definition around line 9 and the vite-imagetools invocation around lines 64–66. Determine how the configured option should reach vite-imagetools, then remove node_modules/.cache/imagetools and verify that setting removeMetadata=false preserves image metadata.