Update to R5 v6.2

[rafapereirabr]

Originally posted by @ansoncfit in #144 (comment)

Another heads up: R5 v6.2 was released earlier this week. This version adds path capabilities to the main Raptor router (rather than the point-to-point router). See package com.conveyal.r5.transit.path and https://raw.githubusercontent.com/conveyal/docs/master/docs/guides/compute-freeform.mdx.

On our hosted computation cluster with automatic scaling (see https://conveyal.com/learn), we are now able to prepare detailed transit path results for millions of origin-destination pairs in a few minutes.