This modification enables backend admins to easier create new tenants.
It first enters data about the tenant (tenantID and tenantName) in entity Tenant and TenantDataSource.
Subsequently it creates the databases (derby only) for the new delegator. The backend-admin can state which datafiles must be loaded in the newly created databases (seed, seed-initial, ext, etc...)
Finally it creates the tenant-admin and its password in the newly created database. The name of tenant-admin is based on the tenantId given (i.e. tenantId-admin). The password of the tenant-admin must be changed on first login.