Fix formatting and add tileset_anims.h

include/tileset_anims.h

@@ -0,0 +1,9 @@
+#ifndef GUARD_TILESET_ANIMS_H
+#define GUARD_TILESET_ANIMS_H
+
+void InitTilesetAnimations(void);
+void InitSecondaryTilesetAnimation(void);
+void UpdateTilesetAnimations(void);
+void TransferTilesetAnimsBuffer(void);
+
+#endif // GUARD_TILESET_ANIMS_H