Use private parts of new composition API for generic search indexer
so that all objects are properly accessible in search results.
Also prevent ROOT object from getting indexed but still traverse
composition. That way, "The root object" no longer shows in search
results.
Update tests to cover changes.
Fixes#1579
Adds miscellaneous platform updates to include templates
via the RequireJS text plugin; to support modification of
asset paths; and to support priority order for gestures.
Supports integration of new API, #1124.
Remove duplicate ClickAwayController implementation that was obscuring actual
implementation. Debounce clickaway action in case toggle is invoked in a
click handler.
Resolves https://github.com/nasa/openmct/issues/888
