Create high level typescript API alongside auraescript but in its own repo

[bpmooch]

I'd like to split auraescript into its own repo. Auraescript has the potential to be a novel way to interact with an aurae cluster. It is, however, in more of a state of experimentation than auraed. Splitting auraescript out and the required release management work to do so will benefit auraescript and auraed, getting us to a mature gRPC API more quickly than the current setup