startExpanded=True expands all nodes by default

[saetsac]

Change startExpanded behavior so we could expand all child nodes automatically

Description

Inherits startExpanded from parent element. Tracks element by $index (without it arrays were failing to expand)

Motivation and Context

startExpanded by expanding only the top element is kind of a strange thing. We need to expand everything at once.

How Has This Been Tested?

Unittests 4/4 pass

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• [x] My code follows the code style of this project.
• [x] My change requires a change to the documentation.
• [x] I have updated the documentation accordingly.
• [ ] My change requires a change to the test suite.
• [ ] I have written a test to cover the change.

[vinnyb0341]

is there any chance this pull request will be merged?

[awendland]

Apologies for the massive delays in reviewing these PRs, I will attempt to review this on the weekend. Thank you for the addition to the project!

[vinnyb0341]

Don't mean to keep nagging on this, but is this getting reviewed soon?