Merge pull request #340 from brettshearer/patch-1

Update EarningsType.cs

Author: MJMortimer

Xero.Api/Payroll/Australia/Model/Types/EarningsType.cs

@@ -14,6 +14,8 @@ public enum EarningsType
         [EnumMember(Value = "ALLOWANCE")]
         Allowance,
         [EnumMember(Value = "LUMPSUMD")]
-        LumpSumD
+        LumpSumD,
+        [EnumMember(Value = "EMPLOYMENTTERMINATIONPAYMENT")]
+        EmploymentTerminationPayment
     }
-}
+}