processor for CT image windowing task

**Is your feature request related to a problem? Please describe.**
new processor to support windowing of CT images.

**Describe the solution you'd like**
[windowing of CT image
](https://www.kaggle.com/code/redwankarimsony/ct-scans-dicom-files-windowing-explained)

**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.

**Additional context**
Add any other context or screenshots about the feature request here.

Start with the linked Kaggle explanation of CT image windowing, then locate the repository's existing processor entry points and related tests; the issue names no files or tests. Done would mean adding a processor for CT image windowing, but its inputs, outputs, parameters, and validation behavior still need to be defined.

Written by the indexing model from the issue text.