Makes Ghost Anonsay Persistent by Turning it into its own Preference

By turning it into its own preference. The verb stays in the ghost tab, except it now operates by checking client preferences.

Needs
ALTER TABLE `player` ADD `ghost_anonsay` TINYINT(1) NOT NULL DEFAULT '0' AFTER `lastchangelog`;
to add it to the SQL

SQL/paradise_schema_prefixed.sql

@@ -274,6 +274,7 @@ CREATE TABLE `SS13_player` (
   `show_ghostitem_attack` smallint(4) DEFAULT '1',
   `lastchangelog` varchar(32) NOT NULL DEFAULT '0',
   `windowflashing` smallint(4) DEFAULT '1',
+  `ghost_anonsay` tinyint(1) DEFAULT '0',
   `exp` mediumtext,
   PRIMARY KEY (`id`),
   UNIQUE KEY `ckey` (`ckey`)