Create an API to manage "reset" events for source IDs. The API should allow for:

1. add event(s)
2. remove event(s)
3. list event(s) for node/source/timespan parameters

An "event" should consist of:

• node ID
• source ID
• timestamp
• reading data - valid datum data structure(s)

It might make sense to treat "events" just like datum, with a predefined tag that identifies them as an event. This has the advantage that queries on the data will have easy access to the events without having to join to another data stream.