[Added] Kronecker Product

[cvnad1]

Proposed changes

Added Kronecker Product to the MLX core and also added the tests as discussed in #1540

Checklist

Put an x in the boxes that apply.

• I have read the CONTRIBUTING document
• I have run pre-commit run --all-files to format my code / installed pre-commit prior to committing changes
• I have added tests that prove my fix is effective or that my feature works
• I have updated the necessary documentation (if needed)

[cvnad1]

Hey @angeloskath,
I apologize for the delay in adding the implementation of kronecker product. Took some time to navigate and finally have added the implementation. Please review the changes and kindly merge the PR if everything looks good.