inventory sorting

Add inventory sorting buttons based on name, attribute, and set (armoire):
-  Each gear[klass] has its own sorting buttons and sorting state including costume classes
-  The attributes sort descending when selected, then by sum of all attributes
-  There is no default sort
-  The armoire also sorts by set which sorts by item[set] descending, it does not sort within a set (ex "1 of 3" vs "2 of 3")
-  Name sorts by .text() ascending

website/public/js/controllers/sortableInventoryCtrl.js

@@ -0,0 +1,19 @@
+habitrpg.controller('SortableInventoryController', ['$scope',
+  function ($scope) {
+
+    // doing this in a function causes 10 $digest iteration error
+    attributeSort = {
+      con: ['-con', '-(con+int+per+str)'],
+      int: ['-int', '-(con+int+per+str)'],
+      per: ['-per', '-(con+int+per+str)'],
+      str: ['-str', '-(con+int+per+str)'],
+      name: 'text()',
+      set: 'set'
+    }
+
+    $scope.setOrder = function(order) {
+      if (order in attributeSort) {
+        $scope.order = attributeSort[order];
+      }
+    };
+}]);