Do a performance test on the Solr-bound asset search container that was created in MGNLEESOLR-120.

Generate 100,000+ DAM assets, replace the Jackrabbit-based DAM search container with Solr, and run searches in the Assets app. Test the performance of the list and thumbnail views.

Acceptance criteria:

• Searches never time out.
• 80% of searches return results in under 2 seconds.
• Scrolling through results in the list view does not have any lag.
• Scrolling through results in the thumbnail view has minimal lag (generating another batch of thumbnails may take 1-2 seconds)