Add data generation. (#4399)

Recipe and other Data Generators

src/main/java/appeng/entity/EntityGrowingCrystal.java

@@ -34,7 +34,7 @@ import appeng.api.implementations.tiles.ICrystalGrowthAccelerator;
 import appeng.client.EffectType;
 import appeng.core.AEConfig;
 import appeng.core.AppEng;
-import appeng.core.features.AEFeature;
+import appeng.api.features.AEFeature;
 import appeng.util.Platform;