Parent child UI

[jernestmyers]

This branch creates a parent_child_diagram.html template that uses a list of parents and a list of children to create a diagram of the relationship. The template should allow us to extend it to the product relationships as well, though we will likely need to handle sizing and position issues.

I made updates to the examples/recursive_collection/simplepopulate.py script such that we can see/test varying parent-child relationships.

[coveralls]

Pull Request Test Coverage Report for Build 12896031490

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 65.793%

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Totals
Change from base Build 12790574261:	0.0%
Covered Lines:	1079
Relevant Lines:	1640

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💛 - Coveralls