Add min-max normalization

[djdameln]

Description

• Adds min-max normalization as an optional method for normalizing the anomaly scores and heatmaps.
• New MinMaxNormalizationCallback added
• Add option to change normalization method from the configurable parameters

Changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• My code follows the pre-commit style and check guidelines of this project.
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing tests pass locally with my changes

[ashwinvaidya17]

Thanks. Looks good. Only a few very minor comments.

[samet-akcay]

Thanks a lot for the effort @djdameln. Such a great improvement! Only minor comments.