GeoJSONSpawner notification bus bug #132
Description
GeoJSONSpawner has currently wrong handling of notification related to OnEntitiesSpawnBegin and OnEntitiesSpawnFinished. Notification bus is set to have single address and multiple handlers, which is only valid if there is only one spawning component. In case of multiple spawning components on stage, there is no way to distinguish which one sent notification. This behaviour shall be corrected. It would useful to have global notification as well. Global notification would inform that spawning in all components started, finished etc.