Publish Maya rig USD contribution directly into USD asset#931

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BigRoy wants to merge 2 commits intoynput:developfrom BigRoy:enhancement/AY-6685_maya_usd_rig_contributions

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Commits on Oct 1, 2024

Initial draft for publishing maya rigs into the USD asset and groundwork to publish the loaded assets as animation instances directly into the shots
BigRoy
committed
Fix docstring
BigRoy
committed