add target profitOrLess interface

Helius

2020-06-02 a0b6145467388f025c43a53a3d74c4e9741ec847

 src/main/java/com/xcong/excoin/configurations/properties/SecurityProperties.java

@@ -14,4 +14,6 @@
public class SecurityProperties {

    private String privateKey;

    private String publicKey;
}