HELM Chart for Thingverse

**Helm Chart**
It would be good to have a Helm 3 chart for Thingverse.

**Desired Result**
- The Helm Chart should be configurable and should deploy all components of Thingverse and any dependencies like Cassandra and MariaDB.
- Users should be able to supply resource limits(cpu/memory) as overrides for the Helm chart.
- Publish chart to Helm Hub

