Implements the partially created event system with 3 events implemented as proof of concepts.
The 3 events are:
- `blacklistedIpBlocked`: emitted when a request from a blacklisted IP
- `accessRuleCreated`: emitted when a new access rule is created
- `blacklistToggled`: emitted when the blacklist is toggled for a given access rule
Why these events? Because these are the ones I forsee myself needing in the next version of the zoraxy_crowdsec_bouncer
Events are dispatched via a global event manager `plugins.EventSystem.Emit`
