Resize should be a no-op if scale is 1.0 (input == output size)

I noticed that the resize node performs operations even when the input is already the target size.

Instead of resampling the image with a scaling algorithm, I propose that if width == width and height == height, just return the input as-is, since there's nothing to do.

This would enable a workflow where an image is imported, passed into a scaler, which does nothing at 1.00. To preserve quality when no scaling is necessary. But which makes it super convenient to change the scale if needed.