ANW-766 Split out formats, conservation issues, and ratings into individual columns for csv format

[lmcglohon]

Description

Refactor the way the csv format is exported by creating separate columns for formats, conservation issues, and ratings

Related JIRA Ticket or GitHub Issue

https://archivesspace.atlassian.net/browse/ANW-766

Motivation and Context

Returns the assessment record list report back to result before reports refactor

How Has This Been Tested?

Tested using assessments data provided by ticket submitter

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.