This PR adds conversion patterns for MemRef to the `convert-to-spirv`
pass, introduced in #95942. Conversions from MemRef memory space to
SPIR-V storage class were also included, and would run before the final
dialect conversion phase.
**Future Plans**
- Add tests for ops other than `memref.load` and `memref.store`
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Co-authored-by: Jakub Kuderski <kubakuderski@gmail.com>
