[Scenario] Add CSV export

Adds CSV export for nasa/MCT-Plugins#111

Option appears in the export submenu implemented in nasa/mct#236 in both the "Objects" and "This"/"File" context.

Exported CSV includes:
* Base displayed name
* MCT ID
* Object type (java class name)
* Any additional fields available from Info View (including Activity start, end, duration)
* Any Tags associated with the component
* MCT IDs for all child components