开放一些接口，添加上传base64的功能

zhaoxiaohao

2020-07-04 f396628c87b143f233503b23f36e4fc76df25ab2

 kidgrow-business/kidgrow-filecenter/kidgrow-filecenter-server/src/main/java/com/kidgrow/filecenter/properties/OssProperties.java

@@ -32,5 +32,10 @@
     * 说明
     */
    private String domain;

    /**
     * 文件夹
     */
    private String folder;
}