remote-image: support ome.tif image format

[PaulHax]

Need to do something about this:

itk-viewer/packages/remote-image/itk_viewer_remote_image/remote_zarr.py

Lines 62 to 68 in 9a60667

	# TODO: code below does not work yet
	image = cli_input_to_ngff_image(backend, [mapped_path])
	multiscales = to_multiscales(image, method=Methods.DASK_IMAGE_GAUSSIAN)
	store, chunk_store = _make_multiscale_store()
	to_ngff_zarr(store, multiscales, chunk_store=chunk_store)
	return store

That code errors when trying to load an ome.tif file. Need to fix that.

Then later optimization possiblities:

Right now, the remote-renderer package does not actualy request chunks from the returned Zarr store. remote-renderer really wants the image metadata (spacing, array size, etc.) to puppatear agave-renderer. Would be sweet if this chunk of code simply generated NGFF-Zarr metadata for the single image scale raw input, without calling to_multiscales, whose output will never be used.

Or we take bull by horns and feed the NGFF-Zarr output of remote-image::remote_zarr.py to agave-renderer service.