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/ageable.json

@@ -58,7 +58,7 @@
       "title": "Feed Items"
     },
     "grow_up": {
-      "$ref": "../types/event.json",
+      "$ref": "../types/event_object.json",
       "description": "Event to run when this entity grows up.",
       "title": "Grow Up"
     },