Fix silver line busway tunnels not being marked as one-way

Added second busway to represent the second Silver Line bus tunnel. Added stopping locations for Silver Line Way and South Station for the Silver Line routes.

Begin migrating MBTA routes SL1 through SL5 to PTv2

Added missing stops and adjusted ordering for SLW and SL1

Add ways to MBTA route 71 relations

Adjust stops and platforms within MBTA Route 71 routes. Next changesets will be adding the set of ways to them.

Add GTFS reference to LRTA route 4 route master

Add GTFS route ID and reference to MWRTA Green Line Connector route

Re-tag MBTA Route 71 inbound and outbound as bus routes now that trolleybuses are no longer running on them.

Tag former bus route 77A as suspended given that it has stopped running when they stopped the trolleybuses.

Switch SLW route type to bus from trolleybus. They often run trolleybuses on this route but they're phasing them out.

Specify whether pedestrian crossings have islands

Created 3 benches and 2 surveillances

Created a surveillance

Created 2 benches

Add CapeFlyer GTFS reference code to route master

Split tracks at South Station so that there are ways that stop at the stop positions so PTNA recognizes that trains aren't overshooting their stop positions on the route.

Add newly split route as a member of the route master

Split out MBTA Needham Line routes into inbound and outbound routes

Initial attempt at sorting tracks and stops within MBTA Needham Branch route