Add option to override normalization on partial level

[h-enk]

Summary

Brief explanation of the feature.

Basic example

Include a basic example or links here.

Motivation

Why are we doing this? What use cases does it support? What is the expected outcome?

[h-enk]

Images 3.0 supports "normalization" using "proces" — see for example https://images.gethyas.com/docs/reference/configuration/#process

[h-enk]

On partial level, see for example https://images.gethyas.com/docs/reference/partials/picture/#process