333 add consent to uxr contact checkbox to the school onboarding flow

[KristinaDudnyk]

Status

• Closes #333
• Related to add issue numbers or delete

Points for consideration:

• Security
• Performance

What's changed?

Created a new migration for school table:

• added new colunm => creator_agree_to_ux_contact

Steps to perform after deploying to production

If the production environment requires any extra work after this PR has been deployed detail it here. This could be running a Rake task, a migration, or upgrading a Gem. That kind of thing.