More market work (getting close to completion)

* Can now create market offers with fully working UI.
* All filtering is now completed (just need to finish word searching).
* Added some user friendly features to offer selections and item displays (show amount in depot).
* Some more UI ascetics.
* Some other minor market fixes.

TODO:
* Finishing applying changes for latest module updates by edubart.
* Finish buying/selling existing offers.
* Word searching items.
* Offer management.
* Full cipsoft tibia testing.

modules/game_market/market.otui

@@ -3,8 +3,8 @@ MarketWindow < MainWindow
   !text: tr('Market')
   size: 700 510
 
-  @onEnter: self:hide() self:unlock()
-  @onEscape: self:hide() self:unlock()
+  @onEnter: self:hide() self:unlock() Market.clearSelectedItem()
+  @onEscape: self:hide() self:unlock() Market.clearSelectedItem()
 
   // Main Panel Window
 
@@ -24,3 +24,11 @@ MarketWindow < MainWindow
     padding: 3
     border-width: 1
     border-color: #000000
+
+  Label
+    id: balanceLabel
+    !text: tr('Balance: 10000')
+    font: verdana-11px-rounded
+    text-offset: 0 2
+    anchors.top: parent.top
+    anchors.right: parent.right