adopt-project.py: --org and --project must name the repository the source names, compared without case, so plan refuses --project BillingService for acme/billing-service as adopt-not-the-source instead of writing a plan whose execute acts on acme/BillingService, check finds and execute refuses a plan edited to name another as plan-not-the-source, and a source whose own name the naming policy refuses is told to rename it first, never to retype --project (#499) - #513