(svn r23731) -Add: add GSGoal::Question(), to ask a question to a(ll) company(ies). It can contain random text, and at most 3 buttons from a collection of 17

src/command_type.h

@@ -266,6 +266,8 @@ enum Commands {
 	CMD_CUSTOM_NEWS_ITEM,             ///< create a custom news message
 	CMD_CREATE_GOAL,                  ///< create a new goal
 	CMD_REMOVE_GOAL,                  ///< remove a goal
+	CMD_GOAL_QUESTION,                ///< ask a goal related question
+	CMD_GOAL_QUESTION_ANSWER,         ///< answer(s) to CMD_GOAL_QUESTION
 	CMD_LEVEL_LAND,                   ///< level land
 
 	CMD_BUILD_LOCK,                   ///< build a lock