Update to Minecraft 1.15

By: md_5 <git@md-5.net>

paper-server/nms-patches/ContainerStonecutter.patch

@@ -1,7 +1,7 @@
 --- a/net/minecraft/server/ContainerStonecutter.java
 +++ b/net/minecraft/server/ContainerStonecutter.java
-@@ -3,6 +3,11 @@
- import com.google.common.collect.ImmutableList;
+@@ -2,6 +2,11 @@
+ 
  import com.google.common.collect.Lists;
  import java.util.List;
 +// CraftBukkit start
@@ -12,8 +12,8 @@
  
  public class ContainerStonecutter extends Container {
  
-@@ -18,6 +23,21 @@
-     private Runnable m;
+@@ -16,6 +21,21 @@
+     private Runnable l;
      public final IInventory inventory;
      private final InventoryCraftResult resultInventory;
 +    // CraftBukkit start
@@ -34,7 +34,7 @@
  
      public ContainerStonecutter(int i, PlayerInventory playerinventory) {
          this(i, playerinventory, ContainerAccess.a);
-@@ -83,10 +103,12 @@
+@@ -81,10 +101,12 @@
          }
  
          this.a(this.containerProperty);