Adds more unit tests

src/static_data/species_data/mod.rs

@@ -1,6 +1,13 @@
+pub mod ability;
 pub mod ability_index;
 pub mod form;
 pub mod gender;
 pub mod learnable_moves;
 pub mod species;
-pub mod ability;
+
+pub use ability::Ability;
+pub use ability_index::AbilityIndex;
+pub use form::Form;
+pub use gender::Gender;
+pub use learnable_moves::LearnableMoves;
+pub use species::Species;