Initial update to 1.14

So very little works, but it compiles and runs.

Things to resolve over the next few days:
 - Horrible mappings (should largely be resolved by tomorrow).
 - Cannot send extra data over containers - we'll have to see what Forge
   does here.
 - Turtle models are broken
 - No block drops yet - this will largely be cherry-picking whatever I
   did on Fabric.
 - Weird inventory desyncs (items don't show up initially when
   interacting with a CC inventory).
 - Probably lots of other things.

src/main/java/dan200/computercraft/api/peripheral/IPeripheralProvider.java

@@ -7,7 +7,7 @@
 package dan200.computercraft.api.peripheral;
 
 import net.minecraft.tileentity.TileEntity;
-import net.minecraft.util.EnumFacing;
+import net.minecraft.util.Direction;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.World;
 
@@ -34,5 +34,5 @@ public interface IPeripheralProvider
      * @see dan200.computercraft.api.ComputerCraftAPI#registerPeripheralProvider(IPeripheralProvider)
      */
     @Nullable
-    IPeripheral getPeripheral( @Nonnull World world, @Nonnull BlockPos pos, @Nonnull EnumFacing side );
+    IPeripheral getPeripheral( @Nonnull World world, @Nonnull BlockPos pos, @Nonnull Direction side );
 }