Added method to check snapshot state of TileStates (#7325)

patches/api/API-to-get-a-BlockState-without-a-snapshot.patch

@@ -29,3 +29,26 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
      /**
       * Returns the biome that this block resides in
       *
+diff --git a/src/main/java/org/bukkit/block/TileState.java b/src/main/java/org/bukkit/block/TileState.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/block/TileState.java
++++ b/src/main/java/org/bukkit/block/TileState.java
+@@ -0,0 +0,0 @@ public interface TileState extends BlockState, PersistentDataHolder {
+     @NotNull
+     @Override
+     PersistentDataContainer getPersistentDataContainer();
++
++    // Paper start
++    /**
++     * Checks if this TileState is a snapshot or a live
++     * representation of the underlying tile entity.
++     * <p>
++     * NOTE: You may still have to call {@link BlockState#update()} on
++     * live representations to update any visuals on the block.
++     *
++     * @return true if this is a snapshot
++     * @see Block#getState(boolean)
++     */
++    boolean isSnapshot();
++    // Paper end
+ }

patches/server/API-to-get-a-BlockState-without-a-snapshot.patch

@@ -101,6 +101,18 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
      }
  
      public void refreshSnapshot() {
+@@ -0,0 +0,0 @@ public class CraftBlockEntityState<T extends BlockEntity> extends CraftBlockStat
+     public PersistentDataContainer getPersistentDataContainer() {
+         return this.getSnapshot().persistentDataContainer;
+     }
++
++    // Paper start
++    @Override
++    public boolean isSnapshot() {
++        return !this.snapshotDisabled;
++    }
++    // Paper end
+ }
 diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java
 index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
 --- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java