CustomerId, FirstName, LastName need to be mandatory

[steverideschedulercom]

In CustomerInfoType, CustomerId, FirstName, LastName need to be mandatory. Since we need to use these to determine if a client already exists in our system, we need a way to look them up. Also, a customer without a first and last name doesn't make sense.

https://github.com/RideNoCo/drt-tds/blob/d8e61d64cad7d7dc64d2c2b85758e576c6c3b5c9/spec/schema.json#L325

[steverideschedulercom]

If there is no birthdate, RideScheduler will use the Creation Date

[keviniano]

Consensus at 1-22-24 meeting: CustomerId, FirstName, LastName will be mandatory