Add properties retainment tests

[#62719228]
Rename reload/reset option 'parametersToRetain' to 'propertiesToRetain'

[#62719228]

Both for consistency with Interactive JSON 'propertiesToRetain' list
and because this list is not limited to parameters only.
Add new interactive presenting "parametersToRetain" feature

[#62719228]
fix mml-parser for implied visible images
add test for model with visible and hidden image
Update automated benchmark page to use new IFramePhone API

[#62893676]
Update application.js to use new IFramePhone API

[#62893676]
Fix .setFocus() method of Parent Message API
Use property bindings in "Charged and Neutral Atoms" interactives

[#63228372]
Remove unused benchmark interactive (draft)
Use property bindings in "100 Charged Atoms" benchmark interactive

[#63228372]
Use property bindings in "Protein Folding" interactives

[#63228508]