[#58694332] Added db structure for trade codes pairs
[#58694332] Added import scripts for trade codes pairs
[#58694332] Added import of trade codes pairs to import.rake main import task
[#58694332] Renaming trade_codes_pairs to term_trade_codes_pairs
[#58694332] Renamed other_trade_code to trade_code
[#58694332] Updated import task for trade_codes_pairs to use the new renamed and simplified table term_trade_codes_pairs
[#58694332] Added new Inclusion rule to validate pairing between term and unit codes. Added view to fetch valid values
[#58694332] Added specs for pairing terms with units. Removed dependency of specs in the CSV file for annual report
[Finishes #58694332] set polymorphic associations
[Finishes #58694378] Adds validation for term and purpose pairing. Adds specs for this
[Finishes #58694378] Adds validation for term and purpose pairing. Adds specs for this
Merge branch 'secondary_validation_term_unit' of github.com:unepwcmc/SAPI into secondary_validation_term_unit
Merge branch 'develop' into secondary_validation_term_unit

Conflicts:
	spec/controllers/trade/annual_report_uploads_controller_spec.rb
Merged conflicts
[#58694332] Remove distinct from views
Using true and false directly
Merge pull request #88 from unepwcmc/secondary_validation_term_unit

Secondary validation term unit