Update to Minecraft 1.13-pre7

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

paper-server/nms-patches/DataWatcher.patch

@@ -18,3 +18,17 @@
          DataWatcher.Item datawatcher_item = new DataWatcher.Item(datawatcherobject, t0);
  
          this.e.writeLock().lock();
+@@ -128,6 +128,13 @@
+ 
+     }
+ 
++    // CraftBukkit start - add method from above
++    public <T> void markDirty(DataWatcherObject<T> datawatcherobject) {
++        this.b(datawatcherobject).a(true);
++        this.g = true;
++    }
++    // CraftBukkit end
++
+     public boolean a() {
+         return this.g;
+     }