Add "raw event log" export

[false-spring]

The only raw export option is being able to export the "raw damage event log" which only includes damage events. It would also be useful to get all the other events as well, like SBA usage/gain, player load events, etc.

If we want to use the CSV format still, we could just have a bunch of event-specific columns, but player load events will probably be the most tricky to actually export due to the number of fields.

If not, we could just have a text based format. Lines of JSON? Something else?

See https://github.com/false-spring/gbfr-logs/blob/main/protocol/src/lib.rs for raw event shapes.