Implement `repeat_interleave` (#5830)

Summary:
Pull Request resolved: https://github.com/pytorch/executorch/pull/5830

As title; implement the `repeat_interleave` operator. The current implementation has some limitations which are documented in the code.
ghstack-source-id: 246028695
exported-using-ghexport

Reviewed By: jorgep31415

Differential Revision: D63790717

fbshipit-source-id: 090c9fc77d160619def1d0a2acd01d88185a311e