Plan Upgrades

[niemyjski]

• All plan usage including free/trial is tracked in stripe, this will be handled with migrations.
• Report org usage to both stripe
• Add support for rate bases plans
  • Ability to define max spend
  • Update user interface to show current plan and new plans.
  • Add ui routes for updating card info and extended billing information (Add support for additional billing information #1302)
  • Prorated to start on the first day of month to align better with month-based usage reporting.
• Better invoice support by linking orgs to stripe customer ids via api endpoints, and management via endpoints (convert to invoice).

[ejsmith]

Issue cleanup note: keeping this open as the broader billing plan-upgrades tracker. Closed #1302 as a duplicate/sub-item because extended billing information is already called out here.