Add coverage for guatemala tariff rates.
Merge pull request #44 from GovWizely/james/guatemala-tariff-rates

Developers can see Guatemala Tariff Rates [81716168]
First commit, import locally.
Started mappings and queries.
Updated mappings, nested queries.
Updated indexing, mapping, and queries.
Added geo_regions and topics fields and queries.
Refactored import methods.
Refactored query methods, import spec.
Added specs.
Uncommented import statement.
Code climate revisions.
Corrected rubocop autoformat fail.
JSON structure revisions.
Updated queries, more revisions.
Import from data folder.
Search_by terms, formatting.
Updated import logic.
Changed html & xml urls to multi value.
Remove duplicates from arrays, replace null fields