Move getResourceFile to CCAPIImpl

Just means we've got all the resource processing code in one place, and
keeps (most) MC code out of CC itself.

src/main/java/dan200/computercraft/ComputerCraft.java

@@ -16,15 +16,10 @@ import dan200.computercraft.shared.peripheral.monitor.MonitorRenderer;
 import dan200.computercraft.shared.pocket.peripherals.PocketModem;
 import dan200.computercraft.shared.pocket.peripherals.PocketSpeaker;
 import dan200.computercraft.shared.turtle.upgrades.*;
-import net.minecraft.resources.IReloadableResourceManager;
-import net.minecraft.util.ResourceLocation;
 import net.minecraftforge.fml.common.Mod;
-import net.minecraftforge.fml.server.ServerLifecycleHooks;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 
-import java.io.IOException;
-import java.io.InputStream;
 import java.util.Collections;
 import java.util.EnumSet;
 import java.util.List;
@@ -140,16 +135,4 @@ public final class ComputerCraft
         Registry.setup();
     }
 
-    public static InputStream getResourceFile( String domain, String subPath )
-    {
-        IReloadableResourceManager manager = ServerLifecycleHooks.getCurrentServer().getResourceManager();
-        try
-        {
-            return manager.getResource( new ResourceLocation( domain, subPath ) ).getInputStream();
-        }
-        catch( IOException ignored )
-        {
-            return null;
-        }
-    }
 }

src/main/java/dan200/computercraft/ComputerCraftAPIImpl.java

@@ -27,6 +27,7 @@ import dan200.computercraft.shared.wired.WiredNode;
 import net.minecraft.resources.IReloadableResourceManager;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.Direction;
+import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.IBlockReader;
 import net.minecraft.world.World;
@@ -36,6 +37,8 @@ import net.minecraftforge.fml.server.ServerLifecycleHooks;
 
 import javax.annotation.Nonnull;
 import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
 
 import static dan200.computercraft.shared.Capabilities.CAPABILITY_WIRED_ELEMENT;
 
@@ -49,6 +52,19 @@ public final class ComputerCraftAPIImpl implements IComputerCraftAPI
     {
     }
 
+    public static InputStream getResourceFile( String domain, String subPath )
+    {
+        IReloadableResourceManager manager = ServerLifecycleHooks.getCurrentServer().getResourceManager();
+        try
+        {
+            return manager.getResource( new ResourceLocation( domain, subPath ) ).getInputStream();
+        }
+        catch( IOException ignored )
+        {
+            return null;
+        }
+    }
+
     @Nonnull
     @Override
     public String getInstalledVersion()

src/main/java/dan200/computercraft/shared/computer/core/ServerComputer.java

@@ -6,6 +6,7 @@
 package dan200.computercraft.shared.computer.core;
 
 import dan200.computercraft.ComputerCraft;
+import dan200.computercraft.ComputerCraftAPIImpl;
 import dan200.computercraft.api.ComputerCraftAPI;
 import dan200.computercraft.api.filesystem.IMount;
 import dan200.computercraft.api.filesystem.IWritableMount;
@@ -333,7 +334,7 @@ public class ServerComputer extends ServerTerminal implements IComputer, IComput
     @Override
     public InputStream createResourceFile( String domain, String subPath )
     {
-        return ComputerCraft.getResourceFile( domain, subPath );
+        return ComputerCraftAPIImpl.getResourceFile( domain, subPath );
     }
 
     @Override