SPIKE: research and eliminate using 'dropTable' and use 'doTransaction' in DB migrations

[shekarpendem]

Story for tech team to research and eliminate using 'dropTable' and use 'doTransaction' in DB migrations

Definition of Done

• [x] No new security vulnerabilities
• [x] Team code review
• [x] Documentation / readme.md / CircleCI updated
• [x] Docker updated

Tasks

• [x] update migrations to include transaction module (Shekar)
• [x] renumber migrations for forest starting at 30 (Shekar)
• [x] merge migrations one for each table (Shekar)
• [x] clear staging database (Laura)

[sadlerw]

Everything is done. We need to coordinate with @lauraGgit to get the db cleared on staging.