Add Cypress tests

[meissadia]

Closes cfpb/hmda-frontend#560

• Installs Cypress, Cypress Testing Library, and Cypress Keycloak
• Adds "for" attributes to text, radio, and select input's labels
• Adds test for deleting/creating institutions
• Adds test for updating an institutions

Testing

Create a /cypress.env.json with the following env vars

  {
    "HH_AUTH_URL": "https://<dev-url>",
    "HH_USERNAME": <keycloak-username>,
    "HH_PASSWORD": <keycloak-password>
  }

Run yarn cypress run

[wpears]

Approved pending rebase/merge

[meissadia]

Rebased, reinstalled dependencies, and retested. All checks out ✅

I'm going to merge.