Work on the Market Interface (feel free to test it out so far, can't purchase items through the UI yet), More on UITable (needs work on headers still).

* Tables can now have headers (the layouts will require some more work before read to be used formally).
* Finished Market offers display, Item details display, and Item statistics display.
* Added getSelectedWidget to UIRadioGroup class.

Market TODO:
* Create buy/sell offer.
* Purchase sale offer or accept purchase offer.
* More item filtering features (weapons, types, depot only, vocation, etc).
* Item searching feature.
* View your offers (history/current).
* UI touch ups and optimizations.

modules/client_skins/skins/default/styles/tables.otui

@@ -1,13 +1,26 @@
 Table < UITable
   layout: verticalBox
+  header-column-style: HeaderTableColumn
+  header-row-style: HeaderTableRow
   column-style: TableColumn
   row-style: TableRow
+  
+TableData < UIScrollArea
+  layout: verticalBox
 
 TableRow < Label
-  id: defaultRow
   layout: horizontalBox
   height: 10
+  text-wrap: true
 
 TableColumn < Label
-  id: defaultColumn
   width: 30
+  text-wrap: true
+
+TableHeaderRow < Label
+  layout: horizontalBox
+  height: 10
+  text-wrap: true
+
+TableHeaderColumn < Button
+  width: 30