#758: Add missing server properties methods from 1.19

By: Doc <nachito94@msn.com>

paper-api/src/main/java/org/bukkit/Server.java

@@ -853,6 +853,22 @@ public interface Server extends PluginMessageRecipient {
      */
     public void setSpawnRadius(int value);
 
+    /**
+     * Gets whether the server should send a preview of the player's chat
+     * message to the client when the player types a message
+     *
+     * @return true if the server should send a preview, false otherwise
+     */
+    public boolean shouldSendChatPreviews();
+
+    /**
+     * Gets whether the server only allow players with Mojang-signed public key
+     * to join
+     *
+     * @return true if only Mojang-signed players can join, false otherwise
+     */
+    public boolean isEnforcingSecureProfiles();
+
     /**
      * Gets whether the Server hide online players in server status.
      *
@@ -1156,6 +1172,15 @@ public interface Server extends PluginMessageRecipient {
     @NotNull
     Merchant createMerchant(@Nullable String title);
 
+    /**
+     * Gets the amount of consecutive neighbor updates before skipping
+     * additional ones.
+     *
+     * @return the amount of consecutive neighbor updates, if the value is
+     * negative then the limit it's not used
+     */
+    int getMaxChainedNeighborUpdates();
+
     /**
      * Gets user-specified limit for number of monsters that can spawn in a
      * chunk.