Created by Jerry Wang, last modified on Jul 29, 2015
建立bindingContext：
SAP UI5 CreateBindingContext 方法的實作邏輯Created by Jerry Wang, last modified on Jul 29, 2015 因為傳入的oContext為空，是以oData肯定解析不出來。
SAP UI5 CreateBindingContext 方法的實作邏輯Created by Jerry Wang, last modified on Jul 29, 2015 執行loadData重新從背景加載資料：
SAP UI5 CreateBindingContext 方法的實作邏輯Created by Jerry Wang, last modified on Jul 29, 2015 oData傳回：
SAP UI5 CreateBindingContext 方法的實作邏輯Created by Jerry Wang, last modified on Jul 29, 2015 調用createBindingContext 傳入的callback對新的context進行處理：
SAP UI5 CreateBindingContext 方法的實作邏輯Created by Jerry Wang, last modified on Jul 29, 2015 SAP UI5 CreateBindingContext 方法的實作邏輯Created by Jerry Wang, last modified on Jul 29, 2015 
