模块：差旅与报销-员工报销余额
增加自定义字段：全年总额，该字段取值薪资档案对应薪资项额度，关联关系如下。

差旅与报销费用类型编码：
Transportation PD20180806040
Housing Allowance PD20180806037
Meal Allowance PD20180806041
Clothing PDCA002

薪资档案项编码：
交通津贴 (payroll) transportation_allw
房屋津贴 (payroll) housing_allw
餐饮津贴 (reimbursement) canying_other
Clothing (reimbursement) Clothing_other

全年总额Mapping关系：
Transportation = 交通津贴 (payroll)
Housing Allowance = 房屋津贴 (payroll)
Meal Allowance = 餐饮津贴 (reimbursement)
Clothing = Clothing (reimbursement)