Library proposal Encule, a GTFS queuing engine

[kylerchin]

Encule, french for "Enqueue", is a priority queue ordering for public transport data based on novel ananalysis of importance factor rating within GTFS data. Ordering the dataset is key to providing consistent sequencing of streaming to an RPC endpoint via grpc. Note that the operation uses rust atomic types closely.
Work will occur here: https://GitHub.com/catenarytransit/encule