Add new currency support on Duster

Refer to commits for reference

• https://github.com/merklescience/duster/commit/eb43f4973913a8dcb86641eaead2f9259abbad39

• https://github.com/merklescience/duster/commit/866e2bafc3c4b23c935647986a4e229e7343d945

Fairly straight-forward

1. Add new currency type on file palantir/taxonomies.py

2. Create migration file

3. Add empty list to key of new currency on method _prepare_summary_response of palantir/views.py

4. Modify html template templates/palantir/summary.html to include tabs for new coin

5. Remember to add an address validator on utils/address_validator.py
   

Once the data-engineering team has ETL'd the table into bigquery, these additional steps need to be taken to create the extracts used by Clickhouse dictionary to load tags

1. Modify palantir/exports/sql/setup_clusterscheme.py to include query which computes clusters metadata. No such addition is required to setup address scheme as it happens automatically

2. palantir/exports/settings.py needs to be modified to indicate that we will now also be exporting results on the new coin