USD contribution: Set up different default values based on profiles

[BigRoy]

Changelog Description

Follow up PR to: #994 so that USD products will use different attribute defaults based on profiles.

Additional info

TODO

• Implement profiles in settings
• Allow to also filter profiles against e.g. task type

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Testing notes:

1. Use together with PR here: Allow creating more product types as USD with USD contribution workflow and better defaults. ayon-houdini#144
2. In Houdini, start publishing USD model, groom and look products. Each product should have different defaults and target the right 'default layer'

[MustafaJafar]

Hey,
This PR enhances many aspects:

• Dev: From pyblish plugins dev perspective, this PR helps understanding the intention of the creators. also, it helps making the system more modular as I can add as many attributes using different plugins.
• Artist: I can find attributes related to my publish instance.

Note

I made a draft PR ynput/ayon-houdini#148 to show case my test for this PR. (It shows the issue of the difference between product type and families as mentioned here #973 (comment). but, it doesn't leverage this PR), so, I tried one more time.

This example show cases the benefit from this PR.
where I needed to

1. add the necessary families to get_publish_families
2. implement the proper callbacks to show and hide attributes in the publisher (taking USD Contribution Workflow: Show/hide attributes per instance based on status of other toggles #960 as reference).

The draft PRs where I took this screengrab are: ynput/ayon-houdini#149, ynput/ayon-deadline#54

[iLLiCiTiT]

I have a question: Why are used profiles? You have quite deterministic way how it's defined, and it looks like it is not based on settings, you can just have if statements -> more specific and clear why it actually happens...

Nevermind I just saw in description it is meant to be based on settings. But does it make sense to have it in settings? How someone, non-developer, will be able to fill the values correctly?

[BigRoy]

Nevermind I just saw in description it is meant to be based on settings. But does it make sense to have it in settings? How someone, non-developer, will be able to fill the values correctly?

Basically by "product type" (which is the profile) define the defaults for the attributes. Somewhat similar to what the Collect Job Info now does in ayon-deadline but with much less attributes ;)