Provide enough information to allow matrix33 default values

[francis-wangfr]

Description of Change(s)

Remembers default values of matrix33 inputs in Sdr.

This follows the fix done for Boolean inputs done in #1789

Fixes Issue(s)

• N/A

• I have verified that all unit tests pass with the proposed changes

• I have submitted a signed Contributor License Agreement

[JGamache-autodesk]

Fixes #2523

[jesschimein]

Filed as internal issue #USD-8513

[spiffmon]

Thank you, @francis-wangfr ! It looks like you are not currently in the Autodesk CLA - could you please ask Gordon to add you?

[francis-wangfr]

Thank you, @francis-wangfr ! It looks like you are not currently in the Autodesk CLA - could you please ask Gordon to add you?

Yes, @spiffmon, thank you for nice reminder, I was just ware of this, it is still working in progress.

[erikaharrison-adsk]

Fyi, a request has gone out to Gordon. I'm happy to vouch for this work as well, or I can close and re-submit this if that's more effective. (I just got back from 2 weeks vacation; Francis was filling in during that time).

[erikaharrison-adsk]

@francis-wangfr or @spiffmon Can you please close this and I'll re-submit it. github is being "too smart" and won't easily let me submit a new PR, and I'm unable to close this.

[pixar-oss]

Closed request at @erikaharrison-adsk's request. Feel free to submit a new PR at your convenience!