entity hider: add option to hide clan members

runelite-api/src/main/java/net/runelite/api/Client.java

@@ -1584,6 +1584,13 @@ public interface Client extends GameEngine
 	 */
 	void setFriendsChatMembersHidden(boolean state);
 
+	/**
+	 * Sets whether or not clan members are hidden.
+	 *
+	 * @param state the new clan chat member hidden state
+	 */
+	void setClanChatMembersHidden(boolean state);
+
 	/**
 	 * Sets whether or not ignored players are hidden.
 	 *