feat (//core/conversion) : Add converter for torch.repeat_interleave (

[blchu]

Description

Add converter for torch.repeat_interleave. This PR only adds a converter for aten::repeat_interleave.self_int, where the repeats argument is of type int. This does not implement the converter for when the repeats variable is of type Tensor.

Fixes #833

Type of change

• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project (You can use the linters)
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas and hacks
• I have made corresponding changes to the documentation
• I have added tests to verify my fix or my feature
• New and existing unit tests pass locally with my changes
• I have added the relevant labels to my PR in so that relevant reviewers are notified

[narendasan]

LGTM! Thanks for implementing this!