Created & applied new event_object type (#109)

Created new event type.
some components only allow for an event to be an object, not a string
Co-authored-by: Daan Verstraten <daanverstraten@hotmail.com>

source/behavior/entities/format/components/genetics.json

@@ -70,7 +70,7 @@
               "type": "object",
               "properties": {
                 "birth_event": {
-                  "$ref": "../types/event.json",
+                  "$ref": "../types/event_object.json",
                   "description": "Event to run when this mob is created and matches the above allele conditions.",
                   "title": "Brith Event"
                 },