filter my task = true implementation logic

Created by Wang, Jerry, last modified on Oct 30, 2015

old：https://sap.corp:7080/sap/opu/odata/sap/CRM_TASK/Tasks?KaTeX parse error: Expected 'EOF', got '&' at position 7: skip=0&̲top=20&$orderby=CreatedAt$orderby=CreatedAtfilter=MyTask%20eq%20true%20and%20Completed%20eq%20false&$select=Guid$select=Guidinlinecount=allpages

new: http://localhost:8090/sap/opu/odata/sap/CRM_ODATA/TaskCollection?KaTeX parse error: Expected 'EOF', got '&' at position 7: skip=0&̲top=20&$orderby=createdAt%20asc& $filter=isMyTask$filter=isMyTaskselect=GUID%2cobjectId%2cdescription%2cpriority%2ccompleted