Addition of World Exchange system.

Contributed by Index.

L2J_Mobius_Essence_6.2_Vanguard/dist/game/config/WorldExchange.ini

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+# ---------------------------------------------------------------------------
+# World Exchange Settings
+# ---------------------------------------------------------------------------
+
+# Replace clan icon with World Exchange icon.
+# Default: True
+EnableWorldExchange = True
+
+# World Exchange Default Language
+# Use "en" if you dont use multilang
+# or you don't have ItemNameLocalisation.xml file at data/lang/"lang"
+# Usage: Sorting items by name.
+# Default: en
+WorldExchangeDefaultLanguage = en
+
+# Time in MS - every N ms will check all bid status and update if needed.
+# Default: 30 second (30 000 ms)
+BidItemsIntervalStatusCheck = 30000
+
+# Sale tax
+# Default: 5% (0.05)
+# Carefully - hard coded value (in client).
+LCoinFee = 0.05
+
+# Max sale tax
+# Default: 20 000 / On Chinese 500 000 / no limit -1
+# Carefully - need to change GamePlayData.
+MaxLCoinFee = 20000
+
+# Registration Fee
+# Default: 100% (100.0)
+# Carefully - hard coded value (in client).
+AdenaFee = 100.0
+
+# Max Registration Fee
+# Default: -1 (no limit) / On Chinese 20 000
+# Carefully - need to change GamePlayData.
+MaxAdenaFee = -1
+
+# Bid items will save with Global Variable when set to false.
+# If true - on every bid item change.
+# Default: False
+DBLazy = False
+
+# Time, how long item will be registered in World Exchange.
+# Default: 14 Days
+ItemSellPeriod = 14
+
+# Time, how long player can payment from sold item.
+# Default: 120 Days
+PaymentTakePeriod = 120
+
+# Time, how long player can take back item if not sold.
+# Default: 120 Days
+ItemBackPeriod = 120