added an example showing how to use with_rect (#17664)

# Objective


Add an example demonstrating the use of `ImageNode::rect`
Fixes #16482 

## Solution

Modified the code in the original issue #16457

## Testing

to test run

`cargo run --example image_rect  --release`

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Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
Co-authored-by: Carter Anderson <mcanders1@gmail.com>