glTF import plugin preserves joint names

[metaremi]

simply use the USD node name instead of creating new names

Description

just use the available node name

Related Issue

joint names where lost when importing glTF

Motivation and Context

needed for correctly importing

How Has This Been Tested?

joint names are now correcly imported

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [x I have signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• [x I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.