Replace ISO2 country codes with ISO3 country codes

[alexander-elgin]

• [x] In the 'Deploy Assessment' script use the country_ID field (not the iso2 field)
• [x] Create a script updating the
  1. Assessments (assessment_ID)
  2. Answers (answer_ID and assessment_ID)
  3. Documents (assessments)
  4. Interviewees (assessments)
  5. Questions (assessments)
  6. Users (assessments.assessment_ID)
• [x] Change ids of the existing assessments

Create a script that updates a given assessment and all related data

RGI_2017_tool_UN_country_names_codes_AH_28.10.16.xlsx