Task thread for 3D models in data refresh & Elasticsearch

[AetherUnbound]

Corollary to #719

The following changes need to be made to the ingestion server in order to support 3D models in the data refresh and Elasticsearch.

• #711
• #714
• #713
• #712
• #710

[sarayourfriend]

Closing as 3d models are indefinitely on hold and no work should be done on them until we re-plan this project.