Support for ARM64 Macs

[vincentisambart]

Checklist

• Reviewed the README and documents.
• Searched existing issues for ensure not duplicated.

Description

DiffableDataSources should support ARM Macs.

Motivation and Context

DiffableDataSources currently only gets built for x86_64 for macOS and the Simulator. Now that all new Macs use an ARM CPU, DiffableDataSources should also be built for ARM.

Proposed Solution