客户端来源参数及代码结构重新设计

pcloud-common-core/src/main/java/com/pcloud/common/core/enums/SourceTypeEnum.java

+package com.pcloud.common.core.enums;
+
+/**
+ * Description Cookie中sourceType枚举类
+ * @author PENG
+ * @date 2018/5/10
+ */
+public enum SourceTypeEnum {
+
+    /**
+     * 扫码带入的二维码ID
+     */
+    QRCODE("QRCODE");
+
+    /**
+     * 值
+     */
+    public final String value;
+
+    /**
+     * 构造
+     * @param value
+     */
+    SourceTypeEnum(String value) {
+        this.value = value;
+    }
+}