Crystal Growth Refactor (#4702)

* Refactored crystal in-world purification:
- Removed iterative formula
- Set the default growth factor to 1 rather than 0.5 to simplify settings
- Made the growth-tick-progress-per-tick a configuration setting for 0-6 accelerators
- Unfinished seeds now slowly sink when ejected by an annihilation plane or other system (emulates a player throwing it in)
- Instead of checking for "isLiquid", we now check for a new tag (appliedenergistics2:crystal_purification_medium) to check if the crystal is submerged in an allowed fluid for growth, defaults to #minecraft:water.

* Removed configuration options for changing how accelerators work,
replaced with improved fluid tag option with a clamped multiplier [1,10].

src/api/java/appeng/api/implementations/items/IGrowableCrystal.java

@@ -23,13 +23,23 @@
 
 package appeng.api.implementations.items;
 
-import net.minecraft.block.Block;
-import net.minecraft.block.material.Material;
+import javax.annotation.Nullable;
+
+import net.minecraft.block.BlockState;
 import net.minecraft.item.ItemStack;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.World;
 
 public interface IGrowableCrystal {
 
     ItemStack triggerGrowth(ItemStack is);
 
-    float getMultiplier(Block blk, Material mat);
+    /**
+     * Gets the crystal growth multiplier based on the material it is submerged in.
+     *
+     * @param state The blockstate of the block the crystal is currently in.
+     * @return The multiplier for the growth tick progress. Zero if the crystal
+     *         cannot grow in the current material.
+     */
+    float getMultiplier(BlockState state, @Nullable World world, @Nullable BlockPos pos);
 }