增加付款中状态，同步注释

src/main/java/com/uas/platform/b2c/core/constant/Status.java

@@ -179,6 +179,10 @@ public enum Status {
 	 * {@code 503 待付款}
 	 */
 	TOBEPAID(503, "待付款"),
+	/**
+	 * {@code 523 付款中}
+	 */
+	PAIDING(523, "付款中"),
 	/**
 	 * {@code 504 已付款}
 	 */

src/main/java/com/uas/platform/b2c/fa/payment/model/Installment.java

@@ -45,6 +45,7 @@ public class Installment {
 
     /**
      * 状态
+     * TOBEPAID(503, "待付款"),PAIDING(523, "付款中"),PAID(504, "已付款")
      */
     @Column(name = "ins_status")
     private Integer status;

src/main/java/com/uas/platform/b2c/fa/payment/model/InstallmentDetail.java

@@ -49,6 +49,7 @@ public class InstallmentDetail {
 
     /**
      * 本期状态
+     * TOBEPAID(503, "待付款"),PAID(504, "已付款")
      */
     @Column(name = "insd_status")
     private Short status;