Arnold ROP: Support custom names for AOV separate files

[BigRoy]

Is there an existing issue for this?

• I have searched the existing issues.

Please describe the feature you have in mind and explain what the current shortcomings are?

Currently the expected filepath for AOVs that are separate files are hardcoded.

This would be follow-up on #72 and in particular to resolve the points mentioned in this comment.

How would you imagine the implementation of the feature?

• AOV with separate files enabled should be allowed to render to custom filepaths/names and be supported by the publishing logic regardless of where they are.

Are there any labels you wish to add?

• I have added the relevant labels to the enhancement request.

Describe alternatives you've considered:

No response

Additional context:

No response