adan optimizer

[cvnad1]

Fixes #56

Changes proposed in this pull request:

• Added Adan Optimizer #56 and necessary tests

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[cvnad1]

Hi @stockeh,

Added the Adan Optimizer implementation. Thanks for letting me add this. Kindly review the PR.

[stockeh]

@cvnad1 would you be able to resolve the linting with isort . && black . ? Also, any ideas why the test are failing? We should also run rosenbrock so that the docs can be updated correctly.

[cvnad1]

@stockeh do not know why the tests are failing as the tests in MLX repo were passing, but can check on the linting. Please feel free to share your thoughts. I too will try to see what can be done.