feat(plugins): Implement event system w/ POC events

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`

src/mod/access/access.go

@@ -60,6 +60,7 @@ func NewAccessController(options *Options) (*Controller, error) {
 		//Create one
 		js, _ := json.MarshalIndent(defaultAccessRule, "", " ")
 		os.WriteFile(defaultRuleSettingFile, js, 0775)
+
 	}
 
 	//Generate a controller object
@@ -191,6 +192,7 @@ func (c *Controller) AddNewAccessRule(newRule *AccessRule) error {
 
 	//Save rule to file
 	newRule.SaveChanges()
+
 	return nil
 }