Move common data into ScriptableObjects

If we have a lot of different Prefabs with Components that contain a lot of properties that tend to share data, such as game design values like hit points, strength, speed, and so on, then all of this data will be serialized into every Prefab that uses them. A better approach is to serialize this common data in a ScriptableObject which they load and use instead. This reduces the amount of data stored within the Serialized File for the Prefab and could significantly reduce the loading time of our scenes by avoiding too much repetitive work.