CharDB Schema/Cleanup: cleanup character_tutorial table:

* rename table to account_tutorial, because it holds account specific data;
* rename column account to accountId;
* introduce prepared statements for table.

src/server/shared/Common.h

@@ -180,7 +180,7 @@ const uint8 TOTAL_LOCALES = 9;
 const LocaleConstant DEFAULT_LOCALE = LOCALE_enUS;
 
 #define MAX_LOCALES 8
-#define MAX_CHARACTER_TUTORIAL_VALUES 8
+#define MAX_ACCOUNT_TUTORIAL_VALUES 8
 
 extern char const* localeNames[TOTAL_LOCALES];