Adds a new gossip_schema crate that provides a high-level interface to
schema change notifications.
This crate layers schema-specific interfaces over the existing low-level
gossip crate. Users can obtain best-effort schema change notifications
by implementing a SchemaEventHandler delegate given to a SchemaRx, or
efficiently dispatch schema change notifications to listening peers
using a SchemaTx.
Schema notifications are sent over the Topic::SchemaChanges topic
(ID=1), which the caller must register as an interest on receiving
gossip nodes.
Dom Dwyer
CircleCI[bot]