Add fields service provider for default fields

www/base/src/app/common/services/fields/fields.service.coffee

@@ -0,0 +1,32 @@
+class fieldsService extends Factory('common')
+  constructor: ->
+    return {
+
+      checkbox: (name) ->
+        if localStorage.getItem(name) isnt undefined
+          initial_value = localStorage.getItem(name) is "true"
+
+        ret = 
+          type: 'checkbox'
+          name: name
+          value: initial_value
+
+        return ret
+
+      radio: (name, answers...) ->
+          default_answers = 
+            "yes": "yes"
+            "no" : "no"
+
+          if localStorage.getItem(name) isnt undefined
+            initial_value = localStorage.getItem(name)
+
+          ret = 
+            name: name
+            type: 'radio'
+            value: initial_value
+            answers: default_answers
+
+          return ret
+    }
+