Implements saving of loot (items / money) contained inside lootable inventory items.

* Unlooted items / money persist across player sessions
* Loot inside items is tied to the item rather than the player so if trading
  partially looted items becomes possible, this implementation will still work

* New tables added:

    characters_database.sql (first time users)
    characters_create_item_loot.sql (existing users)

Implementation Can be tested with:

 Watertight Trunk [21113]
 Bulging Sack of Gems [25422]
 Fat Sack of Coins [11937]

Closes #2048

src/server/shared/Database/Implementation/CharacterDatabase.h

@@ -505,6 +505,14 @@ enum CharacterDatabaseStatements
     CHAR_REP_CALENDAR_INVITE,
     CHAR_DEL_CALENDAR_INVITE,
 
+    CHAR_SEL_ITEMCONTAINER_ITEMS,
+    CHAR_DEL_ITEMCONTAINER_ITEMS,
+    CHAR_DEL_ITEMCONTAINER_ITEM,
+    CHAR_INS_ITEMCONTAINER_ITEMS,
+    CHAR_SEL_ITEMCONTAINER_MONEY,
+    CHAR_DEL_ITEMCONTAINER_MONEY,
+    CHAR_INS_ITEMCONTAINER_MONEY,
+
     MAX_CHARACTERDATABASE_STATEMENTS
 };