Fast-Trips Classes and Functions

fast-trips Classes

`Assignment`	Assignment class.
`Error`	Base class for exceptions in fast-trips.
`FastTrips`	This is the model itself.
`FastTripsLogger`	Instances of the Logger class represent a single logging channel.
`Passenger`	Passenger class.
`PathSet`	Represents a path set for a passenger from an origin `TAZ` to a destination `TAZ` through a set of stops.
`Performance`	Performance class.
`Route`	Route class.
`Run`	Functions to simplify running Fast-Trips.
`Skimming`
`Stop`	Stop class.
`TAZ`	TAZ class.
`Transfer`	Transfer class.
`Trip`	Trip class.
`Util`	Util class.