Support for Specifying ImageFileItem via Parameter Input

[ricoroodenburg]

Support has been added for specifying an ImageFileItem via parameter input. Additionally, it is now possible to provide the OSImageIndex via the existing OSImageIndex parameter.

In other words, for deployments using an offline image file, you can now specify both the image file and the index to be used. This enables a full automated deployment process.

Failsafe Mechanism: A failsafe has been implemented. If the specified image or index does not exist, the process will fall back to the original behavior, allowing users to select an image and index from the available list.