New search fields for Materials ‘properties’ and ‘Authorship’.

Properties has checkboxes for for 'Requires download' and 'Runs in browser'. Authorship has checkboxes for Official and Authored by community.

[#60287244]
https://www.pivotaltracker.com/story/show/60287244
Search Result Item display changes.

[#60287244]
https://www.pivotaltracker.com/story/show/60287244
Remove text from Generic Material Icons.