Move Form and Species to traits, implement a bunch of mocks

src/dynamic_data/event_hooks.rs

@@ -76,16 +76,16 @@ pub enum Event<'own> {
         /// The pokemon that changed species.
         pokemon: &'own Pokemon,
         /// The new species of the Pokemon.
-        species: Arc<Species>,
+        species: Arc<dyn Species>,
         /// The form of the species the Pokemon will have.
-        form: Arc<Form>,
+        form: Arc<dyn Form>,
     },
     /// This event happens when a Pokemon changes form during battle. This is rather common.
     FormChange {
         /// The pokemon that changed forms.
         pokemon: &'own Pokemon,
         /// The new form of the Pokemon.
-        form: &'own Form,
+        form: Arc<dyn Form>,
     },
     /// This event happens when a Pokemon takes damage.
     Damage {