Merge remote-tracking branch 'origin/cleanups' into fabric-1.16

# Conflicts:
#	api/src/main/java/appeng/api/implementations/items/IItemGroup.java
#	core/src/main/java/appeng/items/materials/MaterialItem.java
#	src/main/java/appeng/core/Registration.java
#	src/main/java/appeng/core/api/definitions/ApiParts.java
#	src/main/java/appeng/items/parts/ColoredPartItem.java
#	src/main/java/appeng/items/parts/PartItem.java
#	src/main/java/appeng/items/parts/PartModelsHelper.java
#	src/main/java/appeng/items/parts/PartType.java
#	src/main/java/appeng/items/tools/powered/PortableCellItem.java

src/main/java/appeng/parts/AEBasePart.java

@@ -33,7 +33,6 @@ import net.minecraft.util.crash.CrashReportSection;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.LivingEntity;
 import net.minecraft.entity.player.PlayerEntity;
-import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.network.PacketByteBuf;
@@ -67,8 +66,6 @@ import appeng.api.util.DimensionalCoord;
 import appeng.api.util.IConfigManager;
 import appeng.helpers.ICustomNameObject;
 import appeng.helpers.IPriorityHost;
-import appeng.items.parts.PartItem;
-import appeng.items.parts.PartType;
 import appeng.me.helpers.AENetworkProxy;
 import appeng.me.helpers.IGridProxyable;
 import appeng.parts.networking.CablePart;
@@ -96,15 +93,6 @@ public abstract class AEBasePart implements IPart, IGridProxyable, IActionHost,
         return this.host;
     }
 
-    public PartType getType() {
-        Item item = this.is.getItem();
-        if (!(item instanceof PartItem)) {
-            return PartType.INVALID_TYPE;
-        }
-
-        return ((PartItem<?>) item).getType();
-    }
-
     @Override
     public IGridNode getGridNode(final AEPartLocation dir) {
         return this.proxy.getNode();

src/main/java/appeng/parts/automation/DefinitionUpgradeInventory.java

@@ -35,15 +35,12 @@ public final class DefinitionUpgradeInventory extends UpgradeInventory {
 
     @Override
     public int getMaxInstalled(final Upgrades upgrades) {
-        int max = 0;
-
-        for (final ItemStack stack : upgrades.getSupported().keySet()) {
-            if (this.definition.isSameAs(stack)) {
-                max = upgrades.getSupported().get(stack);
-                break;
+        for (final Upgrades.Supported supported : upgrades.getSupported()) {
+            if (supported.isSupported(definition.item())) {
+                return supported.getMaxCount();
             }
         }
 
-        return max;
+        return 0;
     }
 }