[SYCL][Graph] Specify API for explicit update using indices (#12486)

- Adds APIs to the specification for updating graph node arguments using
explicit indices (from `set_arg()` etc.)
- Also includes functionality for updating ND-range of kernel nodes
- Note: Current design is only for kernel execution nodes

Implementation in #12840

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Co-authored-by: Pablo Reble <pablo.reble@intel.com>
Co-authored-by: Ewan Crawford <ewan@codeplay.com>