add verify code interface

Helius

2020-05-29 790a6e131faeeb3244490feb919bf59ebaecdc2a

 src/main/java/com/xcong/excoin/common/contants/AppContants.java

@@ -59,4 +59,9 @@
     */
    public static final int HOME_SYMBOLS_CONTRACT = 2;

    /**
     * 验证码前缀 手机
     */
    public static final String VERIFY_CODE_PREFIX = "CODE_SMS_";

}