Add mappings for most important Extra Cells items (#115)

* EC2 deprecation: Part 1 - Items

Laying the groundwork for absorbing EC2 mappings.

* EC2 deprecation: Part 2 - Blocks

* EC2 Deprecation: Part 3 - Parts

Parts are deprecated.

* set config "replaceEC2" to default true

* API changes to make room for Extra Cells fluid placeholder

* Finish basic item replacement code

- parts work
- items are remapped properly, and converted when they enter the player inventory

* Fixed some storage cell conversion issues

The placeholders did not transfer NBT data properly

* Add handlers for deprecated item cells

Now the placeholder should work automatically in a drive.

The void cell is still a WIP.

* Add more tooltip help and cell handler for void cell

* apply spotless

too lazy to rebase

src/main/java/com/glodblock/github/FluidCraft.java

@@ -6,6 +6,7 @@ import appeng.api.AEApi;
 
 import com.glodblock.github.common.Config;
 import com.glodblock.github.common.storage.FluidCellHandler;
+import com.glodblock.github.crossmod.extracells.EC2Replacer;
 import com.glodblock.github.crossmod.opencomputers.OCDriverInit;
 import com.glodblock.github.crossmod.waila.WailaInit;
 import com.glodblock.github.inventory.InventoryHandler;
@@ -93,6 +94,13 @@ public class FluidCraft {
         SPacketMEUpdateBuffer.disable();
     }
 
+    @Mod.EventHandler
+    public void missingMappings(FMLMissingMappingsEvent event) {
+        if (!ModAndClassUtil.EC2 && Config.replaceEC2) {
+            EC2Replacer.replaceExtraCells(event);
+        }
+    }
+
     @Mod.EventHandler
     public void onLoadComplete(FMLLoadCompleteEvent event) {}