Pull Request Template

Description

Disable Edit button unless HTF selection is "user-defined:"

• Make sure the UIObject property for all instances of MaterialProperties widgets is set to MaterialProperties instead of Default.

• Disable MaterialProperties "Edit" button unless HTF option is set to "User-defined."

Fixes #964

Goes with NatLabRockies/ssc#788

Type of change

• [x ] 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 not work as expected)
• This change requires a documentation update

Checklist:

If you have added a new compute module in a SSC pull request related to this one, be sure to check the Process Requirements.

• [ x] My code follows the style guidelines of this project
• [ x] I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• [ x] My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• [ x] New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• [x ] I have checked my code and corrected any misspellings