This is a proposal to only split out the notify/src/event.rs file into its own crate, which would have no required dependencies, and serde only when the feature is enabled.

The Event struct and child enums are pretty infrequently changed, and it would be helpful to downstream crates/users to be able to use the notify event types without pulling the entire notify runtime.

My specific motivation is for a usage across an IPC or network barrier, where one side does the file watching and the other wants to deserialize into the proper types.