Enable simplex 2d noise for Synthetic dataset

[WenjingKangIntel]

Description

• Provide a summary of the modification as well as the issue that has been resolved. List any dependencies that this modification necessitates.
  This enhances the current synthetic dataset noise generation method with simplex 2d noise:
  references:
  https://en.wikipedia.org/wiki/Simplex_noise
  https://github.com/lmas/opensimplex

Need to discuss whether the init function of AnomalibDataModule is proper. if proper, needs to enable other dataset other than mvtec.

Some other thoughts:
We may need add some APIs to determine mixing ratios of two different types of noises, i.e. perlin2d and simplex2d, instead of using only one type of noise.

• Fixes [Task]: Enabling Unsupervised Workflow: Propose a new thresholding approach #1027

Changes

• Bug fix (non-breaking change which fixes an issue)
• Refactor (non-breaking change which refactors the code base)
• 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
• I have added a summary of my changes to the CHANGELOG (not for minor changes, docs and tests).

[ashwinvaidya17]

This will be very useful. I am fine with the design but maybe @djdameln might have some thoughts about this. There is one issue with circular import though when I try to run the code.

[ashwinvaidya17]

Maybe we can add numba to optional requirements. Thoughts @samet-akcay

[WenjingKangIntel]

numba should be added into requirements, otherwise it would be very slow ...

[ashwinvaidya17]

Thanks for updating this. I am almost fine with the changes.

[djdameln]

Thanks, this is a simple yet useful extension of the random noise augmentation mechanism. We might need to make some changes to the configuration part in the config.yaml to ensure compatibility with other hackathon submissions, but we will sort this out on our side.